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COSRX The Niacinamide 15 Face Serum - 20ml - Ulta Beauty
$25.00
In Stock
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At a glance
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About this item
Highlights
- Made for those with oily, combination, or acne-prone skin.
- Useful for individuals dealing with excess sebum production, enlarged pores, rough skin texture.
- Texture is light and refreshing, it absorbs quickly without leaving any residue.
- It's easy to layer under other skincare products or makeup.
Description
The Niacinamide 15 Serum with Acetyl Glucosamine + Zinc PCA from COSRX is a highly concentrated serum that combines the maximum concentration of niacinamide with optimal ratios of synergistic ingredients for total acne control.
Key Ingredients:
Niacinamide : Provides total acne care by controlling sebum production, soothing acne inflammation and diminishing post acne scars
N-Acetylglucosamine (NAG) : Works in synergy with niacinamide to effectively fade hyperpigmentation
Zinc PCA : Inhibits inflammation and promotes recovery of damaged skin
Allantoin : Promotes collagen synthesis to facilitate skin regeneration
How to use:
After cleansing, during the serum phase, apply a few drops to the skin. Use fingertips to gently massage and absorb the serum, starting from the center of the face working towards the edges. Highly concentrated serums should only be used in the evening? NO! This serum can be used in the morning and/or night. If applied in the morning, be sure to use with a SPF of 30 or higher
All COSRX products are dermatologist-tested, hypoallergenic, paraben-free, sulfate-free, phthalate-free, and alcohol-free.
Key Ingredients:
Niacinamide : Provides total acne care by controlling sebum production, soothing acne inflammation and diminishing post acne scars
N-Acetylglucosamine (NAG) : Works in synergy with niacinamide to effectively fade hyperpigmentation
Zinc PCA : Inhibits inflammation and promotes recovery of damaged skin
Allantoin : Promotes collagen synthesis to facilitate skin regeneration
How to use:
After cleansing, during the serum phase, apply a few drops to the skin. Use fingertips to gently massage and absorb the serum, starting from the center of the face working towards the edges. Highly concentrated serums should only be used in the evening? NO! This serum can be used in the morning and/or night. If applied in the morning, be sure to use with a SPF of 30 or higher
All COSRX products are dermatologist-tested, hypoallergenic, paraben-free, sulfate-free, phthalate-free, and alcohol-free.
Scent: Unscented
Health Facts: Alcohol-Free
Product Warning: Not for children under the age of three
Product Form: Liquid
Sustainability Claims: Cruelty-Free
Beauty Purpose: Acne-Prone, Dark Spot Reduction, Pore Reduction, Oil Control, Brightening, Spot Treatment, Oily
Recommended Skin Type: Acne-Prone, Combination, Normal, Oily
TCIN: 94234054
UPC: 8809598454637
Item Number (DPCI): 342-01-9063
Origin: Imported
Healthcare Disclaimer:
Content on this site is for reference purposes only. Target does not represent or warrant that the nutrition, ingredient, allergen and other product information on our Web or Mobile sites are accurate or complete, since this information comes from the product manufacturers. On occasion, manufacturers may improve or change their product formulas and update their labels. We recommend that you do not rely solely on the information presented on our Web or Mobile sites and that you review the product's label or contact the manufacturer directly if you have specific product concerns or questions. If you have specific healthcare concerns or questions about the products displayed, please contact your licensed healthcare professional for advice or answers.
If the item details aren’t accurate or complete, we want to know about it.
Shipping details
Estimated ship dimensions: 2.04 inches length x 2.12 inches width x 3.7 inches height
Estimated ship weight: 0.29 pounds
Return details
This item can be returned to any Target store or Target.com.
This item must be returned within 90 days of the date it was purchased in store, shipped, delivered by a Shipt shopper, or made ready for pickup.
See the return policy for complete information.
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Guests are saying
This serum has garnered positive feedback for its ability to brighten skin, improve texture, and minimize pores. Many guests have reported visible improvements in their skin tone and a reduction in acne and dark spots. The lightweight formula absorbs quickly, making it suitable for daily use. However, some guests noted a slight burning sensation with frequent application. Overall, it is a popular choice for enhancing skin health and appearance.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.5 out of 5 stars with 1887 reviews
100% would recommend
2 recommendations
5 out of 5 stars
23 December, 2025
originally posted on cosrx
I have been using and
[This review was collected as part of a promotion.] I have been using and buying Niacinamide 15 every transaction because my skin can’t leave without it
5 out of 5 stars
22 December, 2025
originally posted on cosrx
good
[This review was collected as part of a promotion.] good
5 out of 5 stars
11 December, 2025
originally posted on cosrx
My daughter has been using
[This review was collected as part of a promotion.] My daughter has been using this product for a week now and we can see a huge difference already! I am always happy to support a company with clean products also!
5 out of 5 stars
2 December, 2025
originally posted on cosrx
This serum is easy to
[This review was collected as part of a promotion.] This serum is easy to absorb, great one to get to the skincare routine.
5 out of 5 stars
1 December, 2025
originally posted on cosrx
One of the best things
[This review was collected as part of a promotion.] One of the best things I've used for evening out skin texture and minimizing pores. I try other serums and find myself always coming back to this one.
2 out of 5 stars
29 November, 2025
originally posted on http://www.ulta.com

Not impressed
I bought this to reduce my redness. My skin is prone to subclinical rosacea, so I don't have the traditional flare ups you think of with the condition, I just have a condtant baseline of redness all over with the occasional increase in redness due to heat/cold. This product did nothing for my redness. Not even after weeks of consistent use. I also did not see any reduction in acne inflammation and redness. So I can't recommend this product. Especially for the price. In addition, the product is sticky for a long while as it soaks in, and it did cause breakouts if I applied too much of it. 3-4 drops is enough for my face. It does play well with other products though.
5 out of 5 stars
26 November, 2025
originally posted on cosrx
When I added this to
[This review was collected as part of a promotion.] When I added this to my skincare routine my skin did a 180, I used it up and ran out bc it was so good. After not using it for a month and a half I noticed my skin went back to being textured and looked kinda dull. So i repurchased it, it really makes a difference in my skincare routine. It doesn’t leave a residue and is a smooth texture. I recommend.
5 out of 5 stars
15 November, 2025
originally posted on cosrx
Worked super well on the
[This review was collected as part of a promotion.] Worked super well on the pores in my cheeks! No skin irritation for me.
5 out of 5 stars
15 November, 2025
originally posted on cosrx
Love it! Have only used
[This review was collected as part of a promotion.] Love it! Have only used it for a few weeks & already noticed a difference. Very nice consistency and feel on the skin.
5 out of 5 stars
12 November, 2025
originally posted on cosrx
Looks beautiful. Great texture to
[This review was collected as part of a promotion.] Looks beautiful. Great texture to the solution. Work with different skin complexions. .
5 out of 5 stars
11 November, 2025
originally posted on cosrx
Love how it feels on
[This review was collected as part of a promotion.] Love how it feels on my skin and has helped the texture. The great thing about COSRX is that nothing has perfume and nothing irritates my skin. Great under make up
5 out of 5 stars
10 November, 2025
originally posted on cosrx
I’m really glad that I
[This review was collected as part of a promotion.] I’m really glad that I got to try this product. Working miracles for my skin. Thanks
5 out of 5 stars
9 November, 2025
originally posted on cosrx
Works great leaves my skin
[This review was collected as part of a promotion.] Works great leaves my skin looking and feeling soft. It has helped a lot with my acne.
5 out of 5 stars
28 October, 2025
originally posted on http://www.ulta.com

Oil Slick ➡️ Matte-tastic!
Used this before bed last night and woke up to a matte face! I'm in my 40s and there hasn't been a day since puberty that I didnt wake up looking like an oil slick… until now! Hoping it helps my sebaceous hyperplasia too! That's what another review mentioned, which was why I bought it. 🤞🏼Excessively oily girlies - this is your solution!
5 out of 5 stars
Thumbs up graphic, would recommend
10 October, 2025Verified purchase
Incredible for oily skin under makeup
Oily skinned folks - use this!!! The difference is notable. Use at night and again in the am under makeup and the difference is huge. I’m usually an oily mess by lunch but everything looks so good by the end of the day.
5 out of 5 stars
6 October, 2025
originally posted on cosrx
Love this product and how
[This review was collected as part of a promotion.] Love this product and how my skin feels using COSRX!
5 out of 5 stars
5 October, 2025
originally posted on cosrx
So glad I started using
[This review was collected as part of a promotion.] So glad I started using this product!! Really helps with my many skin problems!
5 out of 5 stars
1 October, 2025
originally posted on cosrx
My second bottle of COSRX
[This review was collected as part of a promotion.] My second bottle of COSRX Niacinamide 15 and I will continue to purchase. I have tried many other Niacinamide Serums and it beats all the others hands down for quality and price. You can see pore reduction quickly and my sun spots have decreased with time. I do not have sensitive skin, I use it in the AM after CORSRX C Serum and my skin tolerates it very easily. Give it a shot
5 out of 5 stars
21 September, 2025
originally posted on cosrx
I noticed a difference in
[This review was collected as part of a promotion.] I noticed a difference in my skin texture once I started using it
5 out of 5 stars
18 September, 2025
originally posted on cosrx
This serum has really helped
[This review was collected as part of a promotion.] This serum has really helped brighten my skin and smooth out the texture! I'm on my second bottle. If I use it twice a day I can feel a little bit of a burning sensation, but it's good if I only apply it once a day.