Ask about COSRX The Niacinamide 15 Serum
COSRX The Niacinamide 15 Serum is a high-strength treatment serum formulated with 15% niacinamide to help control excess oil, refine pores, and improve overall skin clarity. It targets breakouts while supporting a smoother, more even complexion.
Enhanced with N-acetylglucosamine (NAG), this formula provides gentle exfoliation and helps reduce the appearance of hyperpigmentation. Zinc PCA supports oil balance, while allantoin soothes the skin and promotes a healthier skin barrier, making it effective for managing acne-prone skin.
Key Benefits
- Oil control – helps regulate sebum production and reduce shine.
- Pore refinement – minimizes the appearance of enlarged pores.
- Acne care – helps improve breakouts and congestion.
- Smoothing effect – refines skin texture for a softer feel.
- Brightening care – helps improve uneven tone and post-acne marks.
Active Ingredients
Niacinamide (15%) – regulates sebum, brightens skin, and improves texture.
N-Acetylglucosamine (NAG) – gently exfoliates and helps fade pigmentation.
Zinc PCA – balances oil production and supports clearer skin.
Allantoin – soothes and supports skin recovery.
Suitable For
Oily, combination, and acne-prone skin with enlarged pores, excess sebum, and post-acne marks.
How to Use
- Apply to cleansed, slightly damp skin.
- Spread evenly across the face or focus on problem areas.
- Follow with moisturizer.
Tip: Start gradually if new to high-concentration niacinamide and pair with soothing products.
Precautions: Avoid combining with strong exfoliating acids in the same routine. Discontinue use if irritation occurs.