COSRX The Niacinamide 15 Serum 20ml, Pack of 2

Features

COSRX The Niacinamide 15 Serum 20ml, 2 Pieces features an optimal 15% high-concentration Niacinamide formula blended with carefully selected synergy ingredients to deliver total care for skin concerns. Formulated with a lightweight liquid texture, it absorbs rapidly without stickiness, leaving the skin feeling fresh and balanced. It is tested to be suitable for sensitive and acne-prone skin, making it an ideal choice for both day and night routines.

Benefits

This serum targets the full cycle of skin troubles, addressing cause, manifestation, and post-trouble traces. It effectively balances excess sebum and oiliness while minimizing the look of enlarged pores, blackheads, and whiteheads. In addition to soothing dryness and refining uneven skin texture, it helps improve skin barrier health, reduces skin redness, and diminishes post-trouble pigmentation to restore a clean, radiant complexion.

Main Ingredients and their effects

Niacinamide (15%): Helps control excess sebum production, minimizes pore appearance, improves the skin barrier, alleviates dryness, and fades blemishes and pigmentation traces.

Acetyl Glucosamine: Acts as a complementary synergy ingredient alongside Niacinamide to soothe and enhance overall skin trouble care.

Zinc PCA: Assists in regulating oiliness and controlling excessive sebum output on the skin.

Allantoin: Delivers skin-soothing and conditioning benefits within the lightweight liquid formulation.

Certifications and Awards

COSRX The Niacinamide 15 Serum is recognized for excellence in skincare and packaging design, receiving the 2023 GLAMOUR Beauty & Wellness Award and the 2023 iF Design Award.

Clinical test results

In a 4-week clinical test conducted by Dermacosmetic Skin Science Laboratory on 20 adult men and women aged 14 to 50, application of the serum produced measurable improvements across multiple skin indicators. After 4 weeks of use, sebum quantity decreased by 45%, oiliness decreased by 48%, blackhead count dropped by 42%, and whitehead count dropped by 50%. The study also recorded a 15% improvement in pigmentation, a 19% improvement in skin traces, a 24.8% reduction in red tone, an 11.7% reduction in yellow tone, and a 2.5% improvement in dark skin tone. Consumer satisfaction reached 100% after 4 weeks of use.

Usage instructions

After cleansing and using toner, dispense a suitable amount of serum directly onto the face during your serum step. Gently roll with your fingertips from the center of the face outward until the serum is completely absorbed. This serum can be used in both morning and evening routines. When applying in the morning, always follow with a sunscreen of SPF 30 or higher to protect the skin and active ingredients.