Cosrx The Niacinamide 15 Serum

Product Information

Achieve a clearer, smoother, and more balanced complexion with COSRX The Niacinamide 15 Serum. This concentrated treatment serum is powered by 15% Niacinamide and Zinc PCA to help control excess oil, refine the appearance of pores, and reduce the look of post-acne marks.

Designed specifically for oily, combination, and blemish-prone skin, this lightweight serum targets multiple skin concerns at once. It helps regulate sebum production, minimizes shine, and supports a more even skin tone without feeling heavy or greasy. With continued use, skin appears clearer, smoother, and healthier-looking.

The non-comedogenic formula has been tested not to clog pores, making it suitable for acne-prone skin. Its fast-absorbing texture layers easily into any skincare routine and works well alongside moisturizers and sunscreen.

Whether you're dealing with frequent breakouts, enlarged pores, excess oil, or lingering acne marks, this high-strength niacinamide serum provides targeted care to help improve overall skin clarity and balance.

Benefits

• Helps reduce the appearance of breakouts and blemishes
• Controls excess oil and shine throughout the day
• Minimizes the appearance of enlarged pores
• Improves the look of post-acne marks and uneven skin tone
• Supports a smoother and more refined skin texture
• Non-comedogenic formula won't clog pores
• Lightweight, fast-absorbing texture
• Suitable for oily, combination, and acne-prone skin

Instructions of Use

1. Cleanse and tone your skin thoroughly.
2. Apply 2–3 drops of serum to the face.
3. Gently pat until fully absorbed.
4. Follow with moisturizer.
5. Use once daily initially, then increase to twice daily if tolerated.
6. Apply sunscreen during daytime use.

Ingredient List

Key Ingredients

• Niacinamide 15% – Helps regulate excess sebum, improve skin tone, and reduce the appearance of pores and blemishes.
• Zinc PCA – Helps control oil production and supports clearer-looking skin.
• Hydrating Base Ingredients – Help maintain skin comfort and hydration.
• Skin Conditioning Agents – Support smoother, healthier-looking skin.