COSRX The Niacinamide 15 Serum,20ml | High-Strength 15% Niacinamide for Clear, Bright & Balanced Skin

COSRX The Niacinamide 15 Serum 20ml is a powerful, high-strength skin treatment formulated with 15% niacinamide to fight blemishes, control excess oil, fade dark spots, and refine enlarged pores. Enriched with N-acetylglucosamine (NAG) and soothing ingredients, this serum helps reduce active acne, calms inflammation, and strengthens the skin barrier while brightening your overall complexion.
The lightweight, fast-absorbing formula makes it perfect for improving skin texture, regulating sebum, and achieving a clearer, smoother, and more radiant look. Ideal for oily, acne-prone, and combination skin.

 Key Points

• Contains 15% high-strength Niacinamide for visible pore and sebum control

• Helps reduce acne, redness, and active blemishes

• Brightens dark spots and evens out skin tone

• Improves skin texture and refines enlarged pores

• Strengthens the skin barrier with NAG

• Lightweight, fast-absorbing, non-sticky serum

• Suitable for daily use in morning or night routine

 Skin Types

This product is best for:

• Oily skin

• Combination skin

• Acne-prone skin

• Normal skin

Not recommended for very sensitive skin due to high niacinamide strength unless patch tested.

 Seasons

Suitable for all seasons:

• Summer: Controls oil and shine

• Winter: Strengthens barrier and brightens dull skin

• Spring & Autumn: Keeps skin clear and balanced

 How to Use

1. Cleanse and tone your face.

2. Apply 2–3 drops of COSRX The Niacinamide 15 Serum.

3. Gently spread and pat until fully absorbed.

4. Follow with moisturizer.

5. Use Sunscreen during the day for best results.

Use 3–4 times a week if new to high-strength niacinamide, then increase to daily use if tolerated.