COSRX The Niacinamide 15 Serum 20ml, 2-Pack

Features

COSRX The Niacinamide 15 Serum is a high-potency targeted treatment designed to address skin concerns such as excess sebum, visible pores, and uneven skin texture. This lightweight, liquid-formula serum absorbs quickly into the skin without leaving a sticky residue. It is formulated to be suitable for acne-prone and sensitive skin types, providing effective care for blemishes and post-acne marks.

Benefits

This serum provides comprehensive care for skin struggling with excess oil and recurring blemishes. By regulating sebum production and addressing pores, the formula helps minimize oiliness and the appearance of blackheads and whiteheads. Beyond immediate blemish control, it aids in improving the appearance of post-acne marks and skin tone, promoting a more uniform and clear complexion. Its gentle yet effective composition also supports skin hydration and barrier improvement.

Main Ingredients and their effects

Niacinamide (15%): A highly effective ingredient that helps control sebum, minimize the appearance of pores, and improve the look of skin blemishes and post-acne marks.

Acetyl Glucosamine: Works in synergy with Niacinamide to provide enhanced care for uneven skin tone and texture.

Zinc PCA: Helps to regulate excess oil production and soothe the skin, supporting the overall efficacy of the blemish-care formula.

Allantoin: Included to provide additional soothing benefits, ensuring the serum is comfortable for various skin types.

Clinical test results

In a clinical study conducted by Derma Cosmetic Skin Science Research Institute (September 3, 2022, to October 4, 2022, involving 20 adults aged 14–50), participants showed significant improvements after 4 weeks of use. Results included a 45% reduction in sebum levels, a 48% reduction in oiliness, a 42% decrease in blackheads, and a 50% decrease in whiteheads. Additionally, improvements were noted in blemish-related skin marks (-19%) and pigmentation (-15%). Skin tone improvements were also observed, with a 24.8% improvement in red skin tone and an 11.7% improvement in yellow skin tone.

Usage instructions

After cleansing and applying toner, dispense an appropriate amount of COSRX The Niacinamide 15 Serum onto the skin. Gently roll the serum from the inside of the face toward the outer edges until fully absorbed. This serum can be used in both morning and evening routines. When using as part of a morning skincare routine, it is essential to apply a sunscreen with SPF 30 or higher to protect the skin and the active ingredients. Due to the high concentration of active ingredients, if any residue appears around the bottle opening after exposure to air, this is a natural phenomenon and does not affect the quality of the product.