Is this for me?
Ideal for those with sensitive skin or seeking a brighter complexion. This high-concentration vitamin C serum brightens and evens skin tone.
About this item
⭐ No vitamin derivatives! Experience the true effects of 100% pure vitamin with our "live vitamin C" formula that penetrates deep into the skin. It addresses skin concerns like dullness, enlarged pores, and lack of firmness from the root. ⭐ Over 5 million units sold! Newly revamped and now available. NO MORE tuna can! Our fragrance-free formula features a hygienic and easy-to-use dropper for a more pleasant daily skincare routine. ⭐ Feel the difference in transparency…
COSRX Vitamin C Serum 2nd Generation 20ml - 23% High Concentration Pure Vitamin C for Pore Care and Brightening
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Last verified: Jul 3, 2026
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Mid-range pricing
COSRX Vitamin C Serum 2nd Generation 20ml - 23% High Concentration Pure Vitamin C for Pore Care and Brightening
Last verified: Jul 3, 2026
Is this for me?
Ideal for those with sensitive skin or seeking a brighter complexion. This high-concentration vitamin C serum brightens and evens skin tone.
Price Insight
Last 90 days price range
Technical Specifications
- ⭐ No vitamin derivatives! Experience the true effects of 100% pure vitamin with our 'live vitamin C' formula that penetrates deep into the skin. It addresses skin concerns like dullness, enlarged pores, and lack of firmness from the root.
- ⭐ Over 5 million units sold! Newly revamped and now available: NO MORE tuna can! Featuring a fragrance-free formula, the hygienic and easy-to-use dropper makes daily care more enjoyable.
- ⭐ Feel the difference in transparency with just one drop. Rich yet lightweight, it smooths out your skin tone with every use.
- ⭐ Zero stickiness and quick absorption. The premium texture delivers moisture deep into the skin without any greasiness upon application. It keeps the surface dry while maintaining a moist feel inside for all-day comfort.
- ⭐ Gentle design suitable for sensitive skin. Tested for low irritation, this formula is safe for daily use and cares for your skin.
- ⭐ Simultaneously hydrates and enhances transparency. This 2-in-1 approach prevents dryness and dullness while creating a radiant glow from within.
| ASIN | B0FWQGLTQV |
| Amazon | Beauty - Rank 411 (See best sellers in Beauty) Serum - Rank 18 |
susume Verdict
Formulated with 100% pure vitamin C to address dullness and pore concerns at the source. Features a fragrance-free, easy-to-use dropper design with a non-greasy texture that absorbs quickly. Low-irritation design makes it safe for sensitive skin, perfect for daily care.
Reviews
“Repeat purchase: At first, I thought it might be too irritating to use, but I pushed through because I didn't want to waste it, and eventually, it became fine. My skin has brightened up and feels smooth, which makes me happy. This is my third purchase, including the one before the renewal. It's a hassle to go to the fridge every time, so I transferred it to a 3ml dropper container and keep it in the bathroom for easy use.”
“Moist and smooth: No odor, and my skin feels great when I use this.”
“Great value: I've been using it for a month now, and people around me have said my pores look smaller. At first, there was a slight tingling sensation, but I've gotten used to it. There's no smell, and it feels cost-effective, so I plan to continue using it.”
“顔の皮がむけました。: リニューアル前のはお気に入りで数本リピして、リニューアル後の商品は初めて使用しましたが、顔の皮がむけました。リニューアル前は何もトラブルなかったのですが、今回は日焼け後のペリペリ皮むけのうす皮バージョンといったむけ方をして、肌の表面がモロモロ、モケモケした状態になって、見た感じは頬や口元が粉が吹いたようになりました。その後薄くペリペリはがれて1週間くらいで治ってから再び使ってみましたが新たに皮むけすることはなくその後は普通に使えています。久しぶりの高濃度のビタミンcに肌が驚いたのか、新処方の基剤が自分には合わなかったのかどっちかわからないのですが、効果はリニューアル前と変わらない気がするのですが、刺激が強くなってるかな？？と思いました。”
Translating…
“Wonderful! While it doesn't have a completely neutral scent, it wasn't bothersome, so I finished the entire bottle! I believe my skin has improved in clarity and my pores have gotten better! Since it needs to be refrigerated, I found it a bit cumbersome to take it out after my bath and put it back in the fridge after using it, but I could feel a change in my skin, so the hassle was bearable, haha.”
“Very good! At first, I felt a tingling sensation and my face looked dull, which made me worried. After about a week, the tingling went away, and I feel like my skin tone has become brighter. I want to repurchase this. However, as others have mentioned, it's hard to see how much product is left, making it difficult to know when to replace it.”
“嫌な匂いや刺激がありません。: 強い刺激や嫌な匂いはなく、安心して使用できます。赤くなったり、肌荒れすることはありません。塗布すると最初は少しペトペトしますが、すぐに肌に馴染み、不快感がありません。シミの気になる部分には重ね付けをします。量が多く、安価なので、コスパに優れており、継続しやすいです。”
Translating…
“Favorite Vitamin Serum: The smell is gone, which is great! This definitely helps fade my acne scars! I feel like the redness is gradually decreasing, and I keep repurchasing it! I don't feel any stinging!”
Technical Specifications
Key specifications and features.
- ⭐ No vitamin derivatives! Experience the true effects of 100% pure vitamin with our 'live vitamin C' formula that penetrates deep into the skin. It addresses skin concerns like dullness, enlarged pores, and lack of firmness from the root.
- ⭐ Over 5 million units sold! Newly revamped and now available: NO MORE tuna can! Featuring a fragrance-free formula, the hygienic and easy-to-use dropper makes daily care more enjoyable.
- ⭐ Feel the difference in transparency with just one drop. Rich yet lightweight, it smooths out your skin tone with every use.
- ⭐ Zero stickiness and quick absorption. The premium texture delivers moisture deep into the skin without any greasiness upon application. It keeps the surface dry while maintaining a moist feel inside for all-day comfort.
- ⭐ Gentle design suitable for sensitive skin. Tested for low irritation, this formula is safe for daily use and cares for your skin.
- ⭐ Simultaneously hydrates and enhances transparency. This 2-in-1 approach prevents dryness and dullness while creating a radiant glow from within.
| ASIN | B0FWQGLTQV |
|---|---|
| Amazon | Beauty - Rank 411 (See best sellers in Beauty) Serum - Rank 18 |
susume Verdict
Formulated with 100% pure vitamin C to address dullness and pore concerns at the source. Features a fragrance-free, easy-to-use dropper design with a non-greasy texture that absorbs quickly. Low-irritation design makes it safe for sensitive skin, perfect for daily care.
Reviews
“Repeat purchase: At first, I thought it might be too irritating to use, but I pushed through because I didn't want to waste it, and eventually, it became fine. My skin has brightened up and feels smooth, which makes me happy. This is my third purchase, including the one before the renewal. It's a hassle to go to the fridge every time, so I transferred it to a 3ml dropper container and keep it in the bathroom for easy use.”
“Moist and smooth: No odor, and my skin feels great when I use this.”
“Great value: I've been using it for a month now, and people around me have said my pores look smaller. At first, there was a slight tingling sensation, but I've gotten used to it. There's no smell, and it feels cost-effective, so I plan to continue using it.”
“顔の皮がむけました。: リニューアル前のはお気に入りで数本リピして、リニューアル後の商品は初めて使用しましたが、顔の皮がむけました。リニューアル前は何もトラブルなかったのですが、今回は日焼け後のペリペリ皮むけのうす皮バージョンといったむけ方をして、肌の表面がモロモロ、モケモケした状態になって、見た感じは頬や口元が粉が吹いたようになりました。その後薄くペリペリはがれて1週間くらいで治ってから再び使ってみましたが新たに皮むけすることはなくその後は普通に使えています。久しぶりの高濃度のビタミンcに肌が驚いたのか、新処方の基剤が自分には合わなかったのかどっちかわからないのですが、効果はリニューアル前と変わらない気がするのですが、刺激が強くなってるかな？？と思いました。”
Translating…
“Wonderful! While it doesn't have a completely neutral scent, it wasn't bothersome, so I finished the entire bottle! I believe my skin has improved in clarity and my pores have gotten better! Since it needs to be refrigerated, I found it a bit cumbersome to take it out after my bath and put it back in the fridge after using it, but I could feel a change in my skin, so the hassle was bearable, haha.”
“Very good! At first, I felt a tingling sensation and my face looked dull, which made me worried. After about a week, the tingling went away, and I feel like my skin tone has become brighter. I want to repurchase this. However, as others have mentioned, it's hard to see how much product is left, making it difficult to know when to replace it.”
“嫌な匂いや刺激がありません。: 強い刺激や嫌な匂いはなく、安心して使用できます。赤くなったり、肌荒れすることはありません。塗布すると最初は少しペトペトしますが、すぐに肌に馴染み、不快感がありません。シミの気になる部分には重ね付けをします。量が多く、安価なので、コスパに優れており、継続しやすいです。”
Translating…
“Favorite Vitamin Serum: The smell is gone, which is great! This definitely helps fade my acne scars! I feel like the redness is gradually decreasing, and I keep repurchasing it! I don't feel any stinging!”