COSRX The Niacinamide 15 Serum Reviews
This Korean review was translated by AI and may contain inaccuracies.
15 Reviews
- ๋ด๋ด์ปคํผMay 1, 2025Combination SkinSensitive SkinAcne Skin
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The content is currently being reviewed by the Hwahae operations team, and the verification will be completed by the next business day (excluding weekends and holidays) from the date the review was written.Reviewed by The Hwahae Testers
This review was written by The Hwahae Testers who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.ProsI initially applied this product on my bare face in the morning, but noticed some pilling when applying makeup. Now I use it alternately with my vitamin C product in the evenings. I've been using it for two months, though not consistently. I apply it on mornings when I'm not wearing makeup or using vitamin C products. 1. While the effects aren't immediate, I notice my skin looks a bit brighter the day after using this product. This is likely due to the high 15% concentration of niacinamide, which seems to have a positive impact on the skin. With consistent use, you'll definitely notice your skin becoming more radiant. 2. The product itself is quite hydrating. While it doesn't provide long-lasting moisture like hyaluronic acid products, it's surprisingly hydrating for a niacinamide serum. Those with oily or combination skin might find this product alone sufficient without an additional cream. However, it has a slightly gel-like texture that forms a film on the skin. This film doesn't stay moist for long, so those with dry skin might notice their wrinkles and pores becoming more pronounced over time. I'd recommend pairing it with a hydrating ampoule or cream. 3. When applied, this product smooths out skin texture and doesn't emphasize dead skin cells. 4. The ingredients are gentle and non-irritating. I experienced no blemishes, excess oil production, tingling, or redness.
Cons1. The niacinamide in this product has a sticky texture that can cause makeup to pill, making skin look a bit messy. While the pilling isn't severe, it's noticeable around the cheekbones and eye area, which can be inconvenient as it requires touch-ups. 2. Even though it's not for daily use, the price is quite high for the small amount you get. I find myself waiting for sales to purchase it. 3. The product is almost fragrance-free, but there's a slight scent reminiscent of glue mixed with saliva. However, if you're not sensitive to smells, it's barely noticeable. I actually prefer this to artificial fragrances that can cause headaches. 4. I'm not sure how many bottles it takes to see results, but I'm still on my first bottle and honestly can't say I've noticed any improvement in blemishes, blemish marks, or pores. 5. The dropper is quite short, so one full dropper isn't enough to cover my entire face (maybe I have a big face?). It's a bit inconvenient having to use the dropper twice for each application.
TipFor those who need to apply this product in the morning, I recommend using a small amount to prevent makeup pilling. After application, pat it in well and allow some time before applying makeup.
- ๋น์ธ์ง์Mar 22, 2025Combination SkinAcne Skin
Review under verification
The content is currently being reviewed by the Hwahae operations team, and the verification will be completed by the next business day (excluding weekends and holidays) from the date the review was written.Reviewed by The Hwahae Testers
This review was written by The Hwahae Testers who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.ProsI have combination dehydrated skin prone to blemishes! My skin hasn't improved since my student days... I've been using niacinamide for quite a while, but its characteristic stickiness was so intense that I found myself avoiding it. As I used it less and less, my skin suddenly flared up, making me seriously consider seeking help from a dermatologist. With moving and changing jobs, my skin kept acting up as my overall condition declined, so I completely revamped my skincare routine! This product, which I purchased during that overhaul, absorbs so quickly that at first I wondered if I'd even applied it. It leaves a slightly oily residue. Due to the nature of niacinamide, it can sting quite a bit on sensitive areas or open wounds. However, with consistent use, it helps regulate sebum production and reduces texture! Even though the price makes me wince a bit, it's become a repurchase-worthy magic potion. This broke girl is... Following this routine: toner > niacinamide > bakuchiol serum > mist > cream, I've noticed my skin improving significantly, and even old scars seem to be fading bit by bit.
ConsFor first-time users, you might experience some deep dryness if you only use this product! It would be great to use it with hydrating toners and emulsions or creams before and after, but I'd recommend layering a cream toner containing ceramides 2-3 times, then finishing with an ampoule, emulsion, or cream. There is a slight oily residue left behind! If you're worried about your makeup pilling, apply an appropriate amount and gently blot with oil-absorbing sheets.
- opklnm76Feb 15, 2025Oily Skin
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The content is currently being reviewed by the Hwahae operations team, and the verification will be completed by the next business day (excluding weekends and holidays) from the date the review was written.Reviewed by The Hwahae Testers
This review was written by The Hwahae Testers who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.ProsIt's not too watery or oily, so it's easy to apply. It controls oil well, and with consistent use, my blemishes have faded significantly.
ConsWhile applying it in large amounts may cause slight pilling, there are no other notable downsides.
- ํ์ด์ผ์๋น ์์ดDec 5, 2024Combination SkinSensitive SkinAcne Skin
Review under verification
The content is currently being reviewed by the Hwahae operations team, and the verification will be completed by the next business day (excluding weekends and holidays) from the date the review was written.Reviewed by The Hwahae Testers
This review was written by The Hwahae Testers who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.ProsI purchased this product out of curiosity as it has been consistently ranking highly. Since sunscreen needs to be applied during the day, I only used it at night, and I saw good short-term effects, particularly in terms of tone improvement rather than pore tightening.
ConsExfoliation is essential! Since there is dead skin, it actually gets clogged.
- ์ด์ฐ์งธJul 8, 2024Dry SkinSensitive Skin
Review under verification
The content is currently being reviewed by the Hwahae operations team, and the verification will be completed by the next business day (excluding weekends and holidays) from the date the review was written.Reviewed by The Hwahae Testers
This review was written by The Hwahae Testers who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.ProsThis serum is a true solution for trouble, containing 15% niacinamide to address the root causes and traces of blemishes. As the weather gets warmer in the summer, I was looking for a serum that can control excess oil. This one absorbs without stickiness, leaving a moisturized and smooth finish that effectively manages oiliness. I highly recommend this summer serum, especially for those with combination/oily skin types.
ConsBut I'm not sure if it's just me, the serum seems to leave a film-like residue... even though I didn't apply a heavy toner.
- ๋งจ๋Jun 2, 2024Dry SkinSensitive SkinAcne Skin
Review under verification
The content is currently being reviewed by the Hwahae operations team, and the verification will be completed by the next business day (excluding weekends and holidays) from the date the review was written.Reviewed by The Hwahae Testers
This review was written by The Hwahae Testers who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.ProsI was worried that the high-concentration product would irritate my skin, but when I used it without any skin issues, I didn't feel any irritation! I accidentally touched the product to a wounded area on my face, and that area stung a lot, so I immediately wiped it off, put on a patch, and applied it, and the stinging went away. I'm not sure about the whitening effect yet, but it seems to have helped with pore management:)
ConsWhen used before makeup, it felt a bit heavy, so I only applied it before bedtime.
TipUse it at night!
- ํธ์ํ๋ฌผ๊น์น804823Jan 28, 2024Dry SkinSensitive Skin
Review under verification
The content is currently being reviewed by the Hwahae operations team, and the verification will be completed by the next business day (excluding weekends and holidays) from the date the review was written.Reviewed by The Hwahae Testers
This review was written by The Hwahae Testers who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.ProsThe price is affordable, making it easy to use without burden.
ConsAfter use, there is a tendency to smear, and the texture does not match the tip. It is too runny, often dripping and falling off the face.
- RrnvJan 13, 2024Combination SkinSensitive SkinAcne Skin
Review under verification
The content is currently being reviewed by the Hwahae operations team, and the verification will be completed by the next business day (excluding weekends and holidays) from the date the review was written.Reviewed by The Hwahae Testers
This review was written by The Hwahae Testers who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.ProsAfter absorption, there is no stickiness. A little oiliness was visible after some time of use.
ConsIt often feels like it's sliding off when applying. While applying, something like residue comes out on the hands and face.
- ๊ณจ๊ณจ97Sep 20, 2023Oily SkinSensitive SkinAcne Skin
Review under verification
The content is currently being reviewed by the Hwahae operations team, and the verification will be completed by the next business day (excluding weekends and holidays) from the date the review was written.Reviewed by The Hwahae Testers
This review was written by The Hwahae Testers who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.ProsI've used up the whole bottle and am leaving a review! This was my first time using niacinamide, and I was worried it might be irritating, but there was no irritation at all. My sebum production has visibly decreased, and I feel that my skin texture has improved compared to before.
ConsThere's a bit of pilling..ใ ใ I thought it might be due to dead skin, so I exfoliated and applied it, but it's still pilling.
TipTry using the niacinamide serum > retinol serum > panthenol cream in that order!!! You'll be able to feel your skin becoming smoother and more firm!
- ์ต์์ฌ์Aug 2, 2023Oily SkinAcne Skin
Review under verification
The content is currently being reviewed by the Hwahae operations team, and the verification will be completed by the next business day (excluding weekends and holidays) from the date the review was written.Reviewed by The Hwahae Testers
This review was written by The Hwahae Testers who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.ProsIt flows like water, making it easy to control the amount and it doesn't feel sticky even when using a lot. It seems to help with pore management. Compared to vitamin C, there are fewer concerns and the formulation is not burdensome, making it a good antioxidant ampoule.
ConsThere is sometimes a feeling of it being pushed out like a pimple. There doesn't seem to be a noticeable efficacy.
TipFor night care, I recommend: hyaluronic acid toner - niacinamide ampoule - retinol For a light routine, I recommend: Baha - niacinamide ampoule - moisturizer For summer daytime antioxidant routine, I recommend: toner - niacinamide ampoule - vitamin C (sunscreen is a must)