Cosrx CosRx, The Niacinamide 15 Serum, 0.67 fl. oz. (20 ml)
Cosrx
CosRx, The Niacinamide 15 Serum, 0.67 fl. oz. (20 ml)
- Cosrx
- Moisturizers
- ₱1,518.00
2 StepAcetyl Glucosamine + Zinc PCAOil ControlMinimize Pores & SebumHighly concentrated 15% niacinamide serum that helps control excess sebum and minimizes the appearance of clogged pores.
4.8
₱1,518.00
Retail price
Iherb
Member reviews | 13
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@zen.ki
Philippines
3 reviews
- Age : 36 years
- Skin type : Dry
- Skin concern : Eczema prone|Pores|Aging|Dull Skin
Slow progress but with result
Reviewed: 19 days ago Usage date: September 2026
Purchased by reviewer
Pore changes were visible after 3 months of consistent application.
@den-den.nachor...
Philippines
3 reviews
- Age : 28 years
- Skin type : Combination
- Skin concern : Uneven skin tone|Dehydrated skin|Pores|Textured skin|Dull Skin
Very effective serum!
Reviewed: 1 month ago Usage date: March 2026
Purchased by reviewer
First time ko gamitin yung COSRX Niacinamide 15 Serum and so far, I’m loving it! Hindi siya super heavy sa face and mabilis ma-absorb. After a few uses, napansin ko na mas smooth and less oily-looking yung skin ko. I also like that my skin looks brighter and more even. A little goes a long way, so sulit din yung product. Definitely keeping this in my skincare routine!
@lave.santiago
Philippines
17 reviews
- Age : 27 years
- Skin type : Oily
- Skin concern : Uneven skin tone|Scarring|Eczema prone|Pores|Sensitive|Acne prone
Cosrx
Reviewed: 1 month ago Usage date: May 2026
Purchased by reviewer
After using COSRX The Niacinamide 15 Serum, my oily T-zone immediately felt more balanced, and post-acne dark spots faded remarkably fast. The high concentration smoothed my texture without clogging pores, though I had to start slowly to avoid irritation. It’s my go-to high-potency serum for clear, refined skin.
@Eunice Joyce R...
Philippines
4 reviews
- Age : 25 years
- Skin type : Combination
- Skin concern : Uneven skin tone|Fine lines & wrinkles|Redness|Sun Damage|Dehydrated skin|Pores|Aging|Textured skin|Acne prone|Dark Spots
UGC skincare Cosrx
Reviewed: 3 months ago Usage date: June 2026
Purchased by reviewer
I've been consistent with this and the brightening is slow but real, especially on dark spots. The hydrogel mask feels cooling and leaves my skin looking calm and hydrated after.
@cynthia.collad...
Philippines
6 reviews
- Age : 33 years
- Skin type : Combination
- Skin concern : Uneven skin tone|Fine lines & wrinkles|Scarring|Sagging|Pores|Aging|Acne prone|Dark Spots
Instant glow up
Reviewed: 5 months ago Usage date: April 2026
Purchased by reviewer
I have noticed instant glow up with using this niacinamide. Whether i use it at night or layered in my make up, it just instantly makes a difference. Love COSRX products so much!
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