COSRX The Niacinamide 15 Serum 20ml
COSRX The Niacinamide 15 Serum 20ml – image 2

COSRX The Niacinamide 15 Serum 20ml

1,700 EGP
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Description

A niacinamide serum that helps control excess oil, reduce blemishes, and smooth rough patches.

What it is

Designed to combat acne while improving overall skin tone and texture, it also controls sebum and minimizes enlarged pores for smoother skin. It targets all stages of acne, from early formation to post-breakout recovery.

Key ingredients

Built around 15% niacinamide, the formula also includes acetyl glucosamine and zinc PCA.

How to use

  1. After cleansing and drying your skin, apply 2–3 drops of the serum to your face and neck.
  2. Gently pat it in until fully absorbed.
  3. Follow with the rest of your skincare routine.
  4. During the day, apply SPF 30 or higher to protect your skin.

Texture

Lightweight and fast-absorbing, it absorbs quickly without leaving residue or clogging pores. It is non-comedogenic.

Cautions

Avoid the eye area when applying.

FAQ

Is it suitable for oily or acne-prone skin?

Yes, it is formulated for oily, combination, and acne-prone skin in need of targeted acne care and oil control.

Does it help with post-acne marks?

Yes, it is designed to fade post-acne marks and hyperpigmentation for a more uniform complexion.

Full product details

COSRX The Niacinamide 15 Serum is a high-strength Korean skincare treatment designed to combat acne while improving overall skin tone and texture. Formulated with 15% niacinamide, along with Acetyl Glucosamine and Zinc PCA, it helps control excess oil, reduce blemishes, and smooth rough patches. Lightweight and fast-absorbing, this non-comedogenic serum delivers targeted acne care without clogging pores, making it a versatile addition to any daily skincare routine for clearer, balanced, and healthier-looking skin. 

Key Benefits: 

  • Balances Oil & Refines Pores: Controls sebum and minimizes enlarged pores for smoother skin.
  • Comprehensive Acne Care: Targets all stages of acne, from early formation to post-breakout recovery.
  • Brightens & Evens Tone: Fades post-acne marks and hyperpigmentation for a more uniform complexion.
  • Supports Skin Renewal: Promotes collagen production and improves overall texture.
  • Lightweight & Non-Comedogenic: Absorbs quickly without leaving residue or clogging pores.

Ideal For:

Oily, combination, and acne-prone skin in need of targeted acne care and oil control. Perfect for anyone dealing with excess sebum, enlarged pores, uneven texture, bumps, or post-acne discoloration. Great for those looking for an effective Korean skincare serum that addresses multiple skin concerns in one step.

How To Use: 

After cleansing and drying your skin, apply 2–3 drops of the serum to your face and neck. Gently pat it in until fully absorbed, avoiding the eye area. Follow with the rest of your skincare routine, and be sure to use SPF 30 or higher during the day to protect your skin.

Active ingredients: Niacinamide · Acetyl Glucosamine · Zinc PCA · Allantoin · Vitamin E

Ingredient list source: INCIDecoder, checked 5 November 2026