• COSRX The Niacinamide 15 Serum – 20ml
  • A white box of COSRX The Niacinamide 15 Serum – 20ml features 15% niacinamide, Acetyl Glucosamine, and Zinc PCA to reduce oil and minimize pores. Minimal packaging displays black text and a 20ml/0.67 fl. oz. size label.
  • A COSRX The Niacinamide 15 Serum – 20ml bottle with dropper floats among soft pink spheres on a matching background, showcasing its 15% niacinamide formula to reduce oil and fight acne.
1 3

COSRX The Niacinamide 15 Serum – 20ml

COSRX The Niacinamide 15 Serum – 20ml

£18.99 GBP
£18.99 GBP
Sale Sold out
Taxes included. Shipping calculated at checkout.

A high-strength formula with 15% niacinamide to fight acne, reduce oil, refine pores, and fade post-acne marks — with visible results in 4 weeks.

Clinically proven to cut whiteheads by 50%, blackheads by 43%, and oil production by 48%, while brightening and evening skin tone.

Dermatologist-tested | Lightweight & non-sticky | Suitable for oily, combination, and acne-prone skin

  • 15% niacinamide targets acne, excess oil & enlarged pores
  • Fades post-acne marks & hyperpigmentation
  • Acetyl Glucosamine evens tone & smooths texture
  • Zinc PCA controls sebum & supports healing
  • Allantoin promotes renewal & soothes irritation
  • 50% fewer whiteheads
  • 43% fewer blackheads
  • 48% reduction in oil production
  • Visible brightening and texture improvement in 4 weeks
  1. Apply 2–3 drops to cleansed face morning or night.
  2. Gently pat in until absorbed.
  3. Use SPF in the daytime.

Avoid layering directly with strong vitamin C in the same routine step.

Water, Pentylene Glycol, Niacinamide (15%), Butylene Glycol, Acetyl Glucosamine, 1,2-Hexanediol, Zinc PCA, Trehalose, Xanthan Gum, Pullulan, Allantoin, Ethylhexylglycerin, Sodium Phytate, Citric Acid, Tocopherol.

View full details