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label: MRP

value: Rs. 1250

details 2:

label: Size

value: 20 mL

details 3:

label: Brand

value: COSRX

details 4:

label: Texture

value: Smooth, Radiant, Supple

details 5:

label: Benefits

value: Brightening, Hydrating, Improves pigmentation, Enhances skin tone, Boosts skin elasticity, Reduces pore size, Reduces wrinkles, Moisturizing

details 6:

label: Category

value: Skincare

details 7:

label: Quantity

value: 20 gm

details 8:

label: Ideal For

value: Men & Women

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label: Item Form

value: Serum

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label: Skin Type

value: All Skin Types

details 11:

label: Net Volume

value: 20 ml

details 12:

label: Shelf Life

value: 36 Months

details 13:

label: Expiry Date

value: 15 June 2026

details 14:

label: Formulation

value: Liquid

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label: Ideal Usage

value: Day & Night

details 16:

label: Product Name

value: The Vitamin C 23 Serum

details 17:

label: Skin Concerns

value: Dull Skin, Dark spots, Hyperpigmentation, Rough skin, Uneven skin tone, Marks & Spots Removal

details 18:

label: Key Ingredients

value: 23% Vitamin C, Vitamin E, Allantoin, Squalane, Caffeine, Liquorice, Hyaluronic Acid, Adenosine, Arginine

details 19:

label: Application Area

value: Face, Neck, Skin

details 20:

label: Country of Origin

value: South Korea

details 21:

label: Active Ingredients

value: Vitamin C (23% pure), Allantoin, Hyaluronic acid

details 22:

label: Notable Properties

value: Cruelty Free, Hypoallergenic, Dermatologist Tested, Eco Conscious

details 23:

label: Free Of Ingredients

value: Artificial fragrances, Essential oils, Artificial Colour, Artificial Fragrance

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value: Dropper

details 25:

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value: Highly concentrated stabilized pure vitamin C serum

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detailedReviews 1:

content: superb i have been religiously applying it since last 6months.. and noticed nice glow plus frickles also fading.. so will highly recommend it..

marketplace: clinikally

source: clinikally

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starRating: 5

title: Superb glow and fading freckles after six months

detailedReviews 2:

content: My favourite can live just without only one serum. Can see a drastic brightening just with one use. Removes tan if any, brightens skin like no one can

marketplace: kindlife

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title: Drastic brightening and tan removal in one use

detailedReviews 3:

content: Best vitamin c i ever used it clear all my acne marks

marketplace: foxy

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title: Best vitamin c serum for acne marks

detailedReviews 4:

content: After 1week using of cosrx vitamin c serum it gives little brightening effect and well hydrated my skin but I haven't seen any changes in acne spots reduction may it will take time.Overall this one the best deal on foxy 😊

marketplace: foxy

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starRating: 4

title: Brightening and hydration, acne spot reduction takes time

detailedReviews 5:

content: Is a strong product, recommended for people who have experience with vitamin c

marketplace: foxy

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title: Strong product, recommended for experienced users

detailedReviews 6:

content: This vit c is breaki ng me, out. Didnt use it after 2 weeks Dont like the scent, package is nice but the quality and color changes i think due to transport ...

marketplace: google

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starRating: 3

title: Caused breakouts, scent disliked, quality concerns

detailedReviews 7:

content: Vitamin C working Giving skin good feels

marketplace: clinikally

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starRating: 5

title: Vitamin C working, gives skin good feels

detailedReviews 8:

content: Skin renewal I love the natural ingredients in this serum � it feels great on my skin.

marketplace: clinikally

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starRating: 5

title: Natural ingredients, feels great on skin

detailedReviews 9:

content: Skin rejuvenation I've noticed a significant improvement in my skin's texture since using this serum.

marketplace: clinikally

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starRating: 5

title: Significant improvement in skin texture

detailedReviews 10:

content: Very good product excellent I love this serum 😍

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title: Very good product, excellent serum

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content: Users report a visible evening out of skin tone and a reduction in hyperpigmentation and dark spots within 10-15 days of consistent use, leading to a brighter and more radiant complexion.

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content: Male, aged 26 here. I've been using this for the past 10-14 days, and I could already see results. My usual uneven skin tone is evening out, and hyperpigmentation is slowly reducing! Would definitely buy another bottle! If you're going for a high concentration Vitamin C serum, then this one is hands down THE BEST one there is!

marketplace: amazon

source: amazon

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content: This is a life-changing purchase for me! After using it for 15 days, my skin looks perfect - it's fading dark patches and leaving my skin smooth and radiant in a way I've never experienced before. It absorbs quickly and doesn't cause any irritation, which I absolutely love.

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content: I’ve been using this serum for a few weeks and I already see a difference. My skin looks brighter, more even, and feels smoother. It absorbs quickly and doesn’t leave any sticky feeling. The texture is lightweight and the scent is subtle and pleasant. A little goes a long way. I’ve tried other Vitamin C products before, but this one gave me real results. Highly recommended!

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title: Brightens, evens, smooths, absorbs quickly

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content: My skin has never looked this good… Really good to make your overall complexion even and brighten your skin. Doesn’t feel oily on your skin once you apply. There is a tiny scent but it’s not that noticeable. It’s quite gentle (doesn’t irritate the skin) *TIPS FOR USE* 1. KEEP THIS SERUM IN YOUR FRIDGE (it basically goes bad once it’s in an environment where the temperature is over 10 degrees, but don’t but it inside your refrigerator since the lowest temperature it can last in is 3 degrees.) 2. APPLY SUNCREEN AFTER USING IT. 3. USE IT ONCE A DAY. 4. APPLY 2 TO 3 DROPS A DAY. (Since it’s HIGHLY concentrated in vitamin E, your skin doesn’t need many drops of this serum)

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items 5:

content: superb i have been religiously applying it since last 6months.. and noticed nice glow plus frickles also fading.. so will highly recommend it..

marketplace: clinikally

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title: Superb glow and fading freckles

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content: My favourite can live just without only one serum. Can see a drastic brightening just with one use. Removes tan if any, brightens skin like no one can

marketplace: kindlife

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title: Drastic brightening, removes tan effectively

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content: This how my face is glowing now. I hv tried many vitamin c serum but now am fell in love with this item🥺 I think there is no other product wil give such a glow on your face🥺

marketplace: myntra

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title: Face glowing, fell in love with item

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items 8:

content: It's so good for my skin Glow: Very nice Texture: Smooth Quality: Very good

marketplace: amazon

source: amazon

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items 9:

content: Texture is wonderful, Value for money product, effective on my skin, hydrating and glowing results

marketplace: amazon

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title: Wonderful texture, effective, hydrating, glowing

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content: Nos a funcionado muy bien.

marketplace: amazon

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title: Has worked very well

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content: This serum is really good hydrates skin and plumps and repair

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content: After a few weeks of regular use, I can confidently say this product delivers on its promises. The packaging was professional, and everything arrived in perfect condition. The formula is gentle but effective, with no side effects or discomfort. I’ve experienced noticeable benefits, from improved daily energy to better focus, and even small changes in overall mood. It’s reliable, consistent, and genuinely worth recommending. I don’t often feel this satisfied with wellness products, but this one has been an excellent experience.

marketplace: iherb

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title: Product delivers promises, gentle and effective

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items 13:

content: The package is in dark bottle which is great so it won’t be exposed to the sun. Benefits of this product is lightning the skin and get rid of sun damage you also need sunscreen with it. It’s Gentle on the skin didn’t cause any problems. No weird scent. Size is good.

marketplace: iherb

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title: Dark bottle, brightens skin, gentle

type: REVIEWS

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title: Brightens and evens skin tone, fades dark spots.

heading: Brightens and evens skin tone, fades dark spots.

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content: The serum absorbs quickly into the skin without leaving a sticky or greasy residue, providing a lightweight and smooth feel that users describe as beneficial and non-surface-level.

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articleHeading: COSRX The Vitamin C 23 Serum Reviews and Information

articleLink: https://manirambalwantrai.com/products/cosrx-the-vitamin-c-23-serum

articleSummary: Discusses the serum's efficacy and texture, noting its smooth absorption and radiant finish, though some users mention slight stickiness.

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snippets: The serum has a watery consistency that absorbs smoothly into the skin, leaving it supple and radiant. However, some users have mentioned a slight stickiness upon application, which diminishes as the product sets.

type: ARTICLE

items 2:

content: I have been using the COSRX Pure Vitamin C Serum with Vitamin E for a while now and I really love it. At first, I noticed it has a slightly weird smell. It is not unpleasant but definitely unique compared to other serums I have tried. Once you get used to the smell, it is no longer a problem. What I really like is how it feels on the skin. The texture is very lightweight and it absorbs quickly without leaving any sticky or greasy feeling. It gives my skin a fresh and real sensation as if it is doing something beneficial deep down rather than just sitting on the surface. Since using this serum regularly I have noticed that my skin looks brighter and more even toned. It feels softer and smoother. The added Vitamin E helps with hydration and nourishes my skin. I also appreciate that it does not irritate my skin even though it can be sensitive sometimes so it is gentle yet effective. Overall despite the odd smell at first the performance of this serum makes it totally worth it. It feels like a high quality product that works well and I would definitely recommend it to anyone looking to improve their skincare routine with a Vitamin C serum that actually delivers results.

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title: Brightens, evens tone, smooths skin

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title: Brightens, evens, smooths, absorbs quickly

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items 4:

content: Texture is wonderful, Value for money product, effective on my skin, hydrating and glowing results

marketplace: amazon

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title: Wonderful texture, effective, hydrating, glowing

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reviews: rev_13, rev_36, rev_4

title: Lightweight, fast-absorbing, and non-sticky finish.

heading: Lightweight, fast-absorbing, and non-sticky finish.

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content: Despite its high 23% L-Ascorbic Acid concentration, many users, including those with sensitive skin, report that the serum is gentle and does not cause irritation, redness, or breakouts.

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articleHeading: COSRX The Vitamin C 23 Serum Reviews

articleLink: https://www.hwahae.com/en/products/COSRX-The-Vitamin-C-23-Serum/2001948/reviews

articleSummary: Highlights user reviews emphasizing the serum's efficacy and minimal irritation.

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snippets: A reviewer noted, "This vitamin product barely causes any irritation, and I've genuinely seen amazing results from it."

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articleHeading: COSRX The Vitamin C 23 Serum Review - Important Things To Know About Igridients

articleLink: https://www.youtube.com/watch?v=dnJ6WTpQKY4

articleSummary: Discusses the serum's formulation, noting it's fragrance-free, sulfur-free, and cruelty-free, with ingredients like Niacinamide and Panthenol that can help with sensitivity.

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snippets: so the Quick Info here it's fragance free sulfur free powerin free reef safe cruelty free it's a label the certifies brand is not testing products or animals for me this is huge but it's not alcohol free so you going to have alcohol DEET as an ingredient in this product, then you can have Nite is a formal vitamin B3 that is present in many skin repairing processes it can help boost your skin natural Breer and increase levels of ceramides and then you can have hinic acid is a humant meaning his ability to hold water and rehydrate the skin so these are like the core ingredients that are like important in the product but that's not all with this product what you're actually getting is penel this is pro vitamin B5 is emulin that suit as moisturizes the skin caffeine antioxidant reduces ainus and tiens the skin tightens the skin then you can to have adenosine anti- rinkle agent then you can to have the gardenia Florida fruit extract again antioxidant benefits that may help suiting the skin then you're going to have the let's say the L roses safflower seed oil and root extract brightening soing also beneficial for Drive in camia Japonica seed oil emo and then moisturize and protect the skin and then you're going to have the sativa root carrot extract rich in betacarotene it provides antioxidant benefits

type: ARTICLE

items 3:

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title: Brightens, evens tone, smooths skin

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items 4:

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title: Brightens, evens complexion, gentle, tips

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items 5:

content: The size is sufficient and the package is amazingly good I’ve been using this product frequently and so far the composition is very gentle and has benefits for my sensitive skin and for my age. The scent is neutral and not bad. I highly recommend it as the quality is excellent.

marketplace: iherb

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marketplace: iherb

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title: Dark bottle, brightens skin, gentle

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items 7:

content: Skin renewal I love the natural ingredients in this serum � it feels great on my skin.

marketplace: clinikally

source: clinikally

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title: Love natural ingredients, feels great

type: REVIEWS

items 8:

content: Skin rejuvenation I've noticed a significant improvement in my skin's texture since using this serum.

marketplace: clinikally

source: clinikally

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title: Significant improvement in skin texture

type: REVIEWS

items 9:

content: Vitamin C working Giving skin good feels

marketplace: clinikally

source: clinikally

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title: Vitamin C working, good skin feels

type: REVIEWS

items 10:

content: Useful product Great product been using with my routine for 1 yr now

marketplace: clinikally

source: clinikally

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/clinikally

title: Useful product, great for routine

type: REVIEWS

items 11:

marketplace: iherb

source: iherb

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starRating: 5

title: Product delivers promises, gentle and effective

type: REVIEWS

items 12:

content: I really like this product. The quality is excellent, and it feels like iHerb always chooses reliable and well-made items. I’ve noticed that everything I order from this site arrives well packaged and fresh, which makes a big difference. The price is also fair for the quality you get. I appreciate that I can find so many good and natural products in one place. I’ll definitely keep ordering from iHerb it’s always a pleasant and trustworthy experience. Highly recommended!

marketplace: iherb

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title: Excellent quality, reliable and fresh

type: REVIEWS

items 13:

content: بنات ما يسوى ابدا تاخذون شي مو موثوق لانه رخيص وتعالجون بشرتكم لشهور اولا ريحته كريهة جدا كانها ريحة فاصوليا معلبة بدون مبالغة وهذا الشي كان ممكن يكون محتمل لو انه منتج فعال سبب لي حبوب حمراء اول مره اشوفها بوجهي وقعدت اعالجها لفترة، بشرتي دهنية طبعا استخدمت تونر من نفس الشركة وبرضو ماهو احسن منه، بس متأكدة ان هذا السيروم سبب الحبوب لاني حسيت الحبوب خفت بعد ما وقفته حتى مع استمراري على التونر كان يحرق كمان مع اني سويت اختبار على رقبتي وقلت ممكن طبيعي بما انه فيتامين سي انا ما اعرف اذا المنتج مو اصلي او مكوناته ما ناسبتني بس عموما ما يسوى تعيشين بهالقلق بعدوا عنه احسن

marketplace: amazon

source: amazon

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starRating: 1

title: Caused redness, breakouts, unpleasant smell

type: REVIEWS

items 14:

content: So this serum did work wonders on my skin during the first few days of usage. My skin was even toned and bright. However, as I later realised I was allergic to vitamin C, my skin began to burn and flake a bit, and I have since then shifted to Niacinamide and copper peptide. The texture is a bit grainy and oily, making it different from the lighter, more aqueous Vitamin C serums.

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 3

title: Worked wonders, but caused allergic reaction

type: REVIEWS

items 15:

content: My skin is super sensitive. Ive used this for a couple of weeks. I noticed some sensitivity but thought it may pass. I initially liked it but it seems like my skin is worse from using it & very irritated. Further iherb wont refund me for this product even though its within the 60 day window. If your skin is sensitive, this product may not be for you.

marketplace: iherb

source: iherb

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/iherb

starRating: 2

title: Caused sensitivity and irritation for sensitive skin

type: REVIEWS

reviews: rev_13, rev_30, rev_32, rev_35, rev_21, rev_22, rev_19, rev_20, rev_34, rev_33, rev_12, rev_8, rev_31

title: Gentle and non-irritating for many users.

heading: Gentle and non-irritating for many users.

id: 56952062

sources:

sources 1:

favicon: https://www.google.com/s2/favicons?domain=https://hwahae.com/

title: hwahae.com

sources 2:

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/youtube_favicon.png

title: MKBHD

sources 3:

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/user-reviews-icon.png

title: 13 User Reviews

type: POSITIVE

items 4:

content: The serum effectively addresses concerns like fine lines, wrinkles, and pore appearance, contributing to improved skin elasticity and a smoother texture over time.

detailedSources:

items:

items 1:

articleHeading: COSRX The Vitamin C 23 Serum | Nordstromrack

articleLink: https://www.nordstromrack.com/s/cosrx-the-vitamin-c-23-serum/7614123?origin=coordinating-7614123-0-9-ProductPage2-recbot-top_hits_age_gd_pt1_rack&recs_placement=ProductPage2&recs_strategy=top_hits_age_gd_pt1_rack&recs_source=recbot&recs_page_type=product&recs_seed=4486075&color=NO%20COLOR&srsltid=AfmBOoq7SG4htncfCxGl96Wnnvq1kpkonzcffcNuMdBmbQiHAjp8LYhP

articleSummary: Highlights clinical trial results showing improvements in pigmentation, skin tone, elasticity, and pore appearance.

articleTitle: Nordstromrack

articleType: web_article

favicon: https://www.google.com/s2/favicons?domain=https://www.nordstromrack.com/

snippets: The serum helps fade scars, brighten skin and diminish fine lines and wrinkles., - 16.26% improvement of pigmentation (visible melasma and blemishes), - 32.89% improvement of triple-complexion skin tone (red skin tone), - 32.36% improvement of triple-complexion skin tone (skin radiance), - 16.36% improvement of elasticity (internal elasticity), - 38.65% improvement of the pore (volume), - 27.18% improvement of the pore (count), - 4.18 % improvement of skin age

type: ARTICLE

items 2:

articleHeading: 純粋ビタミンC23％でシミ改善！ザビタミンC23セラムの魅力

articleLink: https://www.lemon8-app.com/@aya88808/7194762651275117061?region=us

articleSummary: Mentions the serum's benefits including tone up, elasticity care, brightening, wrinkle care, and pore care.

articleTitle: Lemon8-App

articleType: web_article

favicon: https://www.google.com/s2/favicons?domain=https://www.lemon8-app.com/

snippets: Tone Up, Elasticity Care, Brightening Care, Wrinkle Care, Antioxidant, Pigmentation Care, Pore Care, After using it for about a week, I noticed that the skin changes are that the pores are tight and the skin is elastic.

type: ARTICLE

items 3:

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 5

title: Brightens, evens tone, smooths skin

type: REVIEWS

items 4:

content: Texture is wonderful, Value for money product, effective on my skin, hydrating and glowing results

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 5

title: Wonderful texture, effective, hydrating, glowing

type: REVIEWS

items 5:

content: Skin rejuvenation I've noticed a significant improvement in my skin's texture since using this serum.

marketplace: clinikally

source: clinikally

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/clinikally

title: Significant improvement in skin texture

type: REVIEWS

reviews: rev_13, rev_4, rev_22

title: Reduces wrinkles and improves skin texture.

heading: Reduces wrinkles and improves skin texture.

id: 7c0f644f

sources:

sources 1:

favicon: https://www.google.com/s2/favicons?domain=https://www.nordstromrack.com/

title: nordstromrack.com

sources 2:

favicon: https://www.google.com/s2/favicons?domain=https://www.lemon8-app.com/

title: lemon8-app.com

sources 3:

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/user-reviews-icon.png

title: 3 User Reviews

type: POSITIVE

items 5:

content: The serum provides hydration and helps plump the skin, contributing to a more supple feel and relieving minor irritations, making it a beneficial addition for overall skin health.

detailedSources:

items:

items 1:

articleHeading: COSRX The Vitamin C 23 Serum 20ml

articleLink: https://www.kindlife.com/products/cosrx-the-vitamin-c-23-serum-20ml

articleSummary: Highlights the serum's ability to hydrate, plump, and repair skin.

articleTitle: Kindlife

articleType: web_article

favicon: https://www.google.com/s2/favicons?domain=https://www.kindlife.com/

snippets: This serum is really good hydrates skin and plumps and repair

type: ARTICLE

items 2:

articleHeading: COSRX The Vitamin C 23 Serum Review - Important Things To Know About Igridients

articleLink: https://www.youtube.com/watch?v=dnJ6WTpQKY4

articleSummary: Mentions that Hyaluronic Acid is a core ingredient that helps rehydrate the skin.

articleTitle: Youtube

articleType: web_article

favicon: https://www.google.com/s2/favicons?domain=https://www.youtube.com/

snippets: then you can have hinic acid is a humant meaning his ability to hold water and rehydrate the skin so these are like the core ingredients that are like important in the product but that's not all with this product what you're actually getting is penel this is pro vitamin B5 is emulin that suit as moisturizes the skin caffeine antioxidant reduces ainus and tiens the skin tightens the skin then you can to have adenosine anti- rinkle agent then you can to have the gardenia Florida fruit extract again antioxidant benefits that may help suiting the skin then you're going to have the let's say the L roses safflower seed oil and root extract brightening soing also beneficial for Drive in camia Japonica seed oil emo and then moisturize and protect the skin and then you're going to have the sativa root carrot extract rich in betacarotene it provides antioxidant benefits

type: ARTICLE

items 3:

content: Texture is wonderful, Value for money product, effective on my skin, hydrating and glowing results

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 5

title: Wonderful texture, effective, hydrating, glowing

type: REVIEWS

items 4:

marketplace: iherb

source: iherb

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/iherb

starRating: 5

title: Gentle for sensitive skin, good scent

type: REVIEWS

items 5:

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 5

title: Brightens, evens tone, smooths skin

type: REVIEWS

reviews: rev_4, rev_32, rev_13

title: Hydrates, plumps, and relieves irritation.

heading: Hydrates, plumps, and relieves irritation.

id: 944a86d7

sources:

sources 1:

favicon: https://www.google.com/s2/favicons?domain=https://www.kindlife.com/

title: kindlife.com

sources 2:

favicon: https://www.google.com/s2/favicons?domain=https://www.youtube.com/

title: MKBHD

sources 3:

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/user-reviews-icon.png

title: 3 User Reviews

type: POSITIVE

items 6:

content: The serum is praised for its high concentration of 23% pure Vitamin C, which is noted as being very effective, and is often considered a good value for money, especially when purchased on sale.

detailedSources:

items:

items 1:

articleHeading: COSRX Vitamin C 23 Serum Review - Worth It? Honest Review

articleLink: https://www.youtube.com/watch?v=c0vJs__-tis

articleSummary: Highlights the serum's high concentration of 23% pure vitamin C and its affordable price point.

articleTitle: Youtube

articleType: web_article

favicon: https://www.google.com/s2/favicons?domain=https://www.youtube.com/

snippets: The formula includes 23% pure vitamin C, ascorbic acid, along with vitamin E and hyaluronic acid., With a price around $19, it's one of the more affordable high-strength vitamin C serums out there.

type: ARTICLE

items 2:

articleHeading: Cosrx Skincare New! 🆕🍊 The Vitamin C 23 Serum First Impressions Review & pH Test

articleLink: https://www.youtube.com/watch?v=9c_ydazxpKw

articleSummary: Mentions the high concentration of 23% ascorbic acid and a great price point.

articleTitle: Youtube

articleType: web_article

favicon: https://www.google.com/s2/favicons?domain=https://www.youtube.com/

snippets: it is exciting to have a strong vitamin c option with 23 percent, This product has a great price point.

type: ARTICLE

items 3:

content: It's overpriced but it's better than any other Vitamin C serum obviously because of the Quantity of C. First time users, first use normal 10% Serum then if it suits you then slowly increase the quantity.

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 4

title: Overpriced but effective Vitamin C serum

type: REVIEWS

items 4:

marketplace: iherb

source: iherb

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/iherb

starRating: 4.5

title: Brightens, evens complexion, gentle, tips

type: REVIEWS

items 5:

content: I bought this COSRX Vitamin C Serum on sale and I'm very satisfied with it. The packaging was great, and it arrived quickly. Made in Korea, it came with some sample products, which led me to purchase their cleanser, eye cream, moisturizer, and hydrating essence as well. I'm really pleased with all of them. It’s a fantastic product!

marketplace: myntra

source: myntra

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/myntra

starRating: 5

title: Satisfied with purchase, great packaging

type: REVIEWS

items 6:

content: Texture is wonderful, Value for money product, effective on my skin, hydrating and glowing results

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 5

title: Wonderful texture, effective, hydrating, glowing

type: REVIEWS

reviews: rev_6, rev_30, rev_0, rev_4

title: Potent 23% Vitamin C at a good value.

heading: Potent 23% Vitamin C at a good value.

id: 49f2740e

sources:

sources 1:

favicon: https://www.google.com/s2/favicons?domain=https://www.youtube.com/

title: MKBHD

sources 2:

favicon: https://www.google.com/s2/favicons?domain=https://www.youtube.com/

title: MKBHD

sources 3:

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/user-reviews-icon.png

title: 4 User Reviews

type: POSITIVE

items 7:

content: The dark bottle packaging is appreciated as it helps protect the Vitamin C from light exposure, which is crucial for maintaining its stability and preventing premature oxidation.

detailedSources:

items:

items 1:

articleHeading: COSRX The Vitamin C 23 Serum 20ml Reviews

articleLink: https://www.iherb.com/reviews/COSRX-The-Vitamin-C-23-Serum-20ml/110847

articleSummary: Notes the dark bottle packaging is great for preventing sun exposure.

articleTitle: Iherb

articleType: web_article

favicon: https://www.google.com/s2/favicons?domain=https://www.iherb.com/

snippets: The package is in dark bottle which is great so it won’t be exposed to the sun.

type: ARTICLE

items 2:

articleHeading: COSRX The Vitamin C 23 Serum 20ml

articleLink: https://www.cultbeauty.com/p/cosrx-the-vitamin-c-23-serum-20ml/13949682

articleSummary: Mentions the dark bottle protects the vitamin C from light exposure, which can cause oxidation.

articleTitle: Cultbeauty

articleType: web_article

favicon: https://www.google.com/s2/favicons?domain=https://www.cultbeauty.com/

snippets: The product is packaged in a dark bottle to protect the vitamin C from light exposure, which can lead to oxidation.

type: ARTICLE

items 3:

marketplace: iherb

source: iherb

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/iherb

starRating: 5

title: Dark bottle, brightens skin, gentle

type: REVIEWS

reviews: rev_35

title: Dark bottle protects against light exposure.

heading: Dark bottle protects against light exposure.

id: d987d37e

sources:

sources 1:

favicon: https://www.google.com/s2/favicons?domain=https://www.iherb.com/

title: iherb.com

sources 2:

favicon: https://www.google.com/s2/favicons?domain=https://www.cultbeauty.com/

title: cultbeauty.com

sources 3:

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/user-reviews-icon.png

title: 1 User Reviews

type: POSITIVE

items 8:

content: The serum is formulated with beneficial ingredients like Vitamin E (Tocotrienol) and Hyaluronic Acid, which enhance its antioxidant properties, provide moisture, and contribute to overall skin health.

detailedSources:

items:

items 1:

articleHeading: COSRX The Vitamin C 23 Serum | Nordstromrack

articleSummary: Highlights the serum's combination of 23% pure vitamin C with vitamin E and hyaluronic acid for antioxidant protection and hydration.

articleTitle: Nordstromrack

articleType: web_article

favicon: https://www.google.com/s2/favicons?domain=https://www.nordstromrack.com/

snippets: The serum combines 23% pure vitamin C with vitamin E and hyaluronic acid, offering antioxidant protection and hydration.

type: ARTICLE

items 2:

articleHeading: Best Korean Vitamin C serums under $30 for all skin types & levels + All the Q's on Vit C answered!

articleLink: https://www.youtube.com/watch?v=IPbDVAc1zYE

articleSummary: Mentions the formula includes 23% pure vitamin C, vitamin E, and hyaluronic acid to fight aging and hydrate.

articleTitle: Youtube

articleType: web_article

favicon: https://www.google.com/s2/favicons?domain=https://www.youtube.com/

snippets: The formula includes 23% pure vitamin C, ascorbic acid, along with vitamin E and hyaluronic acid., This combo helps fight early signs of aging, hydrates the skin, and reduces the appearance of dark spots and wrinkles.

type: ARTICLE

items 3:

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 5

title: Brightens, evens tone, smooths skin

type: REVIEWS

items 4:

marketplace: iherb

source: iherb

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/iherb

starRating: 5

title: Gentle for sensitive skin, good scent

type: REVIEWS

items 5:

marketplace: iherb

source: iherb

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/iherb

starRating: 5

title: Dark bottle, brightens skin, gentle

type: REVIEWS

reviews: rev_13, rev_32, rev_35

title: Enhanced by Vitamin E and Hyaluronic Acid.

heading: Enhanced by Vitamin E and Hyaluronic Acid.

id: a3e80c1b

sources:

sources 1:

favicon: https://www.google.com/s2/favicons?domain=https://www.nordstromrack.com/

title: nordstromrack.com

sources 2:

favicon: https://www.google.com/s2/favicons?domain=https://www.youtube.com/

title: MKBHD

sources 3:

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/user-reviews-icon.png

title: 3 User Reviews

type: POSITIVE

items 9:

content: The serum is suitable for experienced Vitamin C users due to its high concentration, offering significant results in brightening and improving skin tone, making it a preferred choice for those familiar with Vitamin C treatments.

detailedSources:

items:

items 1:

articleHeading: Cosrx Skincare New! 🆕🍊 The Vitamin C 23 Serum First Impressions Review & pH Test

articleLink: https://www.youtube.com/watch?v=9c_ydazxpKw

articleSummary: Recommends it for experienced Vitamin C users, not beginners, due to its strength and other ingredients.

articleTitle: Youtube

articleType: web_article

favicon: https://www.google.com/s2/favicons?domain=https://www.youtube.com/

snippets: probably for the average person i probably wouldn't recommend this if you're somebody that's used a lot of vitamin c in the past you don't have sensitive skin your skin isn't sensitive to denature types of alcohol might be one worth trying but if you're newer to vitamin c this is not the one i'd recommend starting out with just because of how strong it is and a few of the other ingredients

type: ARTICLE

items 2:

articleHeading: Best Korean Vitamin C serums under $30 for all skin types & levels + All the Q's on Vit C answered!

articleLink: https://www.youtube.com/watch?v=IPbDVAc1zYE

articleSummary: States it's suitable for those who have experience with Vitamin C.

articleTitle: Youtube

articleType: web_article

favicon: https://www.google.com/s2/favicons?domain=https://www.youtube.com/

snippets: Suitable for: Those who have experience with vitamin c

type: ARTICLE

items 3:

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 5

title: Effective for uneven tone and hyperpigmentation

type: REVIEWS

items 4:

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 4

title: Overpriced but effective Vitamin C serum

type: REVIEWS

reviews: rev_7, rev_6

title: Ideal for experienced Vitamin C users.

heading: Ideal for experienced Vitamin C users.

id: 59da190a

sources:

sources 1:

favicon: https://www.google.com/s2/favicons?domain=https://www.youtube.com/

title: MKBHD

sources 2:

favicon: https://www.google.com/s2/favicons?domain=https://www.youtube.com/

title: MKBHD

sources 3:

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/user-reviews-icon.png

title: 2 User Reviews

type: POSITIVE

items 10:

content: The product is cruelty-free, aligning with ethical consumer preferences, and is often noted for its good quality and the brand's commitment to ethical practices.

detailedSources:

items:

items 1:

articleHeading: COSRX The Vitamin C 23 Serum 20ml Reviews

articleLink: https://www.iherb.com/reviews/COSRX-The-Vitamin-C-23-Serum-20ml/110847

articleSummary: Highlights the product's cruelty-free certification.

articleTitle: Iherb

articleType: web_article

favicon: https://www.google.com/s2/favicons?domain=https://www.iherb.com/

snippets: Certifications: Cruelty-free, Sustainability: Cruelty-free

type: ARTICLE

items 2:

articleHeading: COSRX The Vitamin C 23 Serum Review - Important Things To Know About Igridients

articleLink: https://www.youtube.com/watch?v=dnJ6WTpQKY4

articleSummary: Confirms the product is cruelty-free.

articleTitle: Youtube

articleType: web_article

favicon: https://www.google.com/s2/favicons?domain=https://www.youtube.com/

type: ARTICLE

items 3:

marketplace: iherb

source: iherb

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/iherb

starRating: 5

title: Excellent quality, reliable and fresh

type: REVIEWS

items 4:

marketplace: myntra

source: myntra

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/myntra

starRating: 5

title: Satisfied with purchase, great packaging

type: REVIEWS

reviews: rev_33, rev_0

title: Cruelty-free and ethically produced.

heading: Cruelty-free and ethically produced.

id: b6208c49

sources:

sources 1:

favicon: https://www.google.com/s2/favicons?domain=https://www.iherb.com/

title: iherb.com

sources 2:

favicon: https://www.google.com/s2/favicons?domain=https://www.youtube.com/

title: MKBHD

sources 3:

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/user-reviews-icon.png

title: 2 User Reviews

type: POSITIVE

items 11:

content: Several users have reported receiving the serum in an oxidized state, appearing dark amber or orange, which renders it ineffective and potentially causes skin staining. This issue is often linked to storage or shipping conditions.

detailedSources:

items:

items 1:

articleHeading: Does COSRX Vitamin C 23 Serum still smell like urine?

articleLink: https://reddit.com/r/AsianBeauty/comments/1ehy85v/does_cosrx_vitamin_c_23_serum_still_smell_like/lg2t9l0/

articleSummary: Users report receiving oxidized product that was dark amber and smelled medicinal, leading them not to use it.

articleTitle: r/AsianBeauty

articleType: reddit

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/reddit_favicon.png

snippets: I bought one last month (July) and found it very unstable. I ordered it online. When it arrived 2 days later, it was already dark amber. Smell was like medicinal in the bottle. Not sure when applied to the skin, I did not use it anymore since it has already oxidized

type: ARTICLE

items 2:

articleHeading: Vitamin C serum color

articleLink: https://reddit.com/r/AsianBeauty/comments/1d1vjei/vitamin_c_serum_color/l5yajxa/

articleSummary: Users confirm that an orange color indicates oxidation, making the product ineffective and potentially staining the skin.

articleTitle: r/AsianBeauty

articleType: reddit

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/reddit_favicon.png

snippets: Mine is already this orange 🤦 I didn’t even notice the colour change. Guess it’s time to chuck it?, It’s safe but it’s not going to be effective. It’s oxidized. I have used countless bottles of the 23 and none of them have ever looked like that.

type: ARTICLE

items 3:

content: The product was completely oxidized and had an orange color with a pungent smell. It was not expired, however for products like vitamin C that are sensitive to reactions like oxidization, they should either be stored in warehouses with colder temperatures and no sunlight or dispatched within 6 months of their manufacture. I used it for 2 days and my skin broke out and is irritated, it will take a week for it to heal now. So it is a review for Amazon, and not the actual product.

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 1

title: Product oxidized, caused irritation and breakout

type: REVIEWS

items 4:

content: The product is cheaper than in other places but dont fall for it. When i opened it it released gas due to oxidisation and the serum had also turned yellow die to it. Not recommended at all

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 1

title: Oxidized product, yellow serum, not recommended

type: REVIEWS

items 5:

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 1

title: Caused redness, breakouts, unpleasant smell

type: REVIEWS

reviews: rev_16, rev_5, rev_12

title: Product can arrive oxidized and ineffective.

heading: Product can arrive oxidized and ineffective.

id: f33da7c4

sources:

sources 1:

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/reddit_favicon.png

title: r/AsianBeauty

sources 2:

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/reddit_favicon.png

title: r/AsianBeauty

sources 3:

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/user-reviews-icon.png

title: 3 User Reviews

type: NEGATIVE

items 12:

content: The serum has a distinct and often unpleasant smell, described by users as 'hotdog water,' 'fish oil capsules,' or even 'urine,' although some users report getting used to it or that the smell dissipates quickly.

detailedSources:

items:

items 1:

articleHeading: Does COSRX Vitamin C 23 Serum still smell like urine?

articleLink: https://reddit.com/r/AsianBeauty/comments/1ehy85v/does_cosrx_vitamin_c_23_serum_still_smell_like/lg5k7wq/

articleSummary: A user reported their product smelled like 'straight up hot dog water'.

articleTitle: r/AsianBeauty

articleType: reddit

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/reddit_favicon.png

snippets: Yes lmao ordered some about 3 months ago and it smells like straight up hot dog water

type: ARTICLE

items 2:

articleHeading: Does COSRX Vitamin C 23 Serum still smell like urine?

articleLink: https://reddit.com/r/AsianBeauty/comments/1ehy85v/does_cosrx_vitamin_c_23_serum_still_smell_like/lg8d40i/

articleSummary: Another user corroborated the smell, comparing it to 'fish oil capsules'.

articleTitle: r/AsianBeauty

articleType: reddit

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/reddit_favicon.png

snippets: Yeah it still smells like fish oil capsules.. Layering on other moisturizers soon after helps cover up the smell

type: ARTICLE

items 3:

articleHeading: COSRX The Vitamin C 23 Serum Review - Important Things To Know About Igridients

articleLink: https://www.youtube.com/watch?v=dnJ6WTpQKY4

articleSummary: Notes that while fragrance-free, it has a noticeable vitamin C smell.

articleTitle: Youtube

articleType: web_article

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/youtube_favicon.png

snippets: There's no fragrance in this but it does have a little bit of that vitamin C smell that you get with some products it's not terribly strong compared to others i've tried but it is kind of there so if you just don't like that smell at all then probably not the one for you

type: ARTICLE

items 4:

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 1

title: Caused redness, breakouts, unpleasant smell

type: REVIEWS

items 5:

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 5

title: Brightens, evens tone, smooths skin

type: REVIEWS

items 6:

content: Definitely works. Does not feel heavy after applying. Initially there was a slight burning sensation in places but that is product efficacy I guess. Best to layer it with same brand products. Go buy.

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 5

title: Works, not heavy, slight burning sensation

type: REVIEWS

reviews: rev_12, rev_13, rev_10

title: Unpleasant scent is a common complaint.

heading: Unpleasant scent is a common complaint.

id: 3d6d8271

sources:

sources 1:

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/reddit_favicon.png

title: r/AsianBeauty

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title: r/AsianBeauty

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title: MKBHD

sources 4:

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/user-reviews-icon.png

title: 3 User Reviews

type: NEGATIVE

items 13:

content: The serum's high concentration of Vitamin C and the presence of denatured alcohol can potentially cause irritation, sensitivity, or breakouts, especially for individuals with very sensitive skin or those new to Vitamin C products.

detailedSources:

items:

items 1:

articleHeading: COSRX The Vitamin C 23 Serum 20ml Reviews

articleLink: https://www.iherb.com/reviews/COSRX-The-Vitamin-C-23-Serum-20ml/110847

articleSummary: A user with sensitive skin experienced irritation and worsening skin after using the product.

articleTitle: Iherb

articleType: web_article

favicon: https://www.google.com/s2/favicons?domain=https://www.iherb.com/

snippets: My skin is super sensitive.Ive used this for a couple of weeks. I noticed some sensitivity but thought it may pass. I initially liked it but it seems like my skin is worse from using it & very irritated.

type: ARTICLE

items 2:

articleHeading: COSRX The Vitamin C 23 Serum Review - Important Things To Know About Igridients

articleLink: https://www.youtube.com/watch?v=dnJ6WTpQKY4

articleSummary: Notes that denatured alcohol combined with high Vitamin C can increase the chance of irritation for sensitive skin.

articleTitle: Youtube

articleType: web_article

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/youtube_favicon.png

snippets: in terms of denatured drying types of alcohol it does contain denatured alcohol it's in the last half of the ingredient list it won't be a huge issue for most people it's going to be a smaller amount however for those with very sensitive skin combining the denatured alcohol with high high amounts of alzorbic acid it can increase the chance of irritation so keep that in mind

type: ARTICLE

items 3:

articleHeading: Cosrx Skincare New! 🆕🍊 The Vitamin C 23 Serum First Impressions Review & pH Test

articleLink: https://www.youtube.com/watch?v=9c_ydazxpKw

articleSummary: Recommends using it once a day as twice a day felt like too much and could be irritating.

articleTitle: Youtube

articleType: web_article

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/youtube_favicon.png

snippets: Sometimes I do apply vitamin C twice a day and I personally felt like you didn't need to with this product., I found it to be a little bit too much when I would do that using it once a day was perfect because it made it a little bit more gentle and I just used it during the daytime.

type: ARTICLE

items 4:

marketplace: iherb

source: iherb

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/iherb

starRating: 2

title: Caused sensitivity and irritation for sensitive skin

type: REVIEWS

items 5:

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 3

title: Worked wonders, but caused allergic reaction

type: REVIEWS

items 6:

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 1

title: Product oxidized, caused irritation and breakout

type: REVIEWS

items 7:

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 1

title: Caused redness, breakouts, unpleasant smell

type: REVIEWS

reviews: rev_31, rev_8, rev_16, rev_12

title: High concentration may cause irritation for some.

heading: High concentration may cause irritation for some.

id: 6d7b4fa5

sources:

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title: iherb.com

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title: MKBHD

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title: MKBHD

sources 4:

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/user-reviews-icon.png

title: 4 User Reviews

type: NEGATIVE

items 14:

content: Due to the instability of Vitamin C, users are advised to store the serum in the refrigerator and use it within two months of opening to maintain its efficacy and prevent rapid oxidation.

detailedSources:

items:

items 1:

articleHeading: Is this already oxidized? COSRX Vitamin C23

articleLink: https://reddit.com/r/kbeauty/comments/1inldjm/is_this_already_oxidized_cosrx_vitamin_c23/mczrnfr/

articleSummary: Suggests storing the serum in the fridge to prevent further oxidation and using the remaining product.

articleTitle: r/kbeauty

articleType: reddit

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/reddit_favicon.png

snippets: It still has some effectiveness but some of it has been oxidized. I suggest you keep it in the fridge to prevent further oxidation and use what you have if you don’t want to waste it.

type: ARTICLE

items 2:

articleHeading: COSRX Vitamin C 23 Serum Review - Worth It? Honest Review

articleLink: https://www.youtube.com/watch?v=c0vJs__-tis

articleSummary: Advises storing the serum in the fridge and using it quickly after opening.

articleTitle: Youtube

articleType: web_article

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/youtube_favicon.png

snippets: Also, because vitamin C is sensitive to light and air, store it in the fridge and use it quickly once opened.

type: ARTICLE

items 3:

articleHeading: Cosrx Skincare New! 🆕🍊 The Vitamin C 23 Serum First Impressions Review & pH Test

articleLink: https://www.youtube.com/watch?v=TrROvCCsAuo

articleSummary: Recommends storing the serum upright in the fridge and using it within 2 months of opening.

articleTitle: Youtube

articleType: web_article

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/youtube_favicon.png

snippets: do store the serum properly to prevent oxidation and maintain its potency upright in the fridge another recommendation from Co RX is to use the serum within 2 months of opening for best results of the active ingredients

type: ARTICLE

items 4:

marketplace: iherb

source: iherb

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/iherb

starRating: 4.5

title: Brightens, evens complexion, gentle, tips

type: REVIEWS

items 5:

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 1

title: Product oxidized, caused irritation and breakout

type: REVIEWS

items 6:

marketplace: amazon

source: amazon

sourceLogo: https://i.flash.tech/a/rs:fill:300:400:0/g:sm/plain/s3://flash-creatives/images/merchants/amazon

starRating: 1

title: Oxidized product, yellow serum, not recommended

type: REVIEWS

reviews: rev_30, rev_16, rev_5

title: Requires careful storage and quick use.

heading: Requires careful storage and quick use.

id: 19885883

sources:

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title: r/kbeauty

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title: MKBHD

sources 4:

favicon: https://i.flash.tech/a/plain/s3://flash-creatives/images/icons/user-reviews-icon.png

title: 3 User Reviews

type: NEGATIVE

scoreData:

Flash AI score: 70

scoreBreakdown:

scoreBreakdown 1:

label: Brightening

value: 85

scoreBreakdown 2:

label: Texture

value: 80

scoreBreakdown 3:

label: Gentleness

value: 70

scoreBreakdown 4:

label: Stability

value: 45

scoreSummary: Recommended - The COSRX The Vitamin C 23 Serum is a strong performer for brightening and improving skin tone, with a pleasant texture, though potential oxidation and a unique scent are noted concerns.

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subtitle: 2783 Products Researches

title: Top Face Serums Overall

widgets 6:

queries: How long does the serum last after opening?, Can I use this with other COSRX products?, What's the difference between this and other serums?, How should I store this Vitamin C serum?

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widgets 8:

queries: Find vitamin C serums under ₹300, Show premium vitamin C serum brands, Explore COSRX skincare routine products, See different vitamin C serum sizes