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The Cosrx Niacinamide 15 Serum is a highly concentrated serum designed for total acne care, combining 15% niacinamide with synergistic ingredients to control sebum production, soothe acne inflammation, and diminish post-acne scars. It is non-comedogenic, meaning it won’t clog pores, and it is suitable for acne-prone skin.

The serum’s key ingredients include:

• Niacinamide (15%): Controls sebum production, reduces inflammation, and helps fade acne scars.

• N-Acetylglucosamine (NAG): Works with niacinamide to effectively fade hyperpigmentation.

• Zinc PCA: Reduces inflammation and helps repair damaged skin.

• Allantoin: Promotes collagen synthesis and skin regeneration.

Clinical results show significant improvements in sebaceous gland activity, oil synthesis, and the number of blackheads and whiteheads over four weeks of use. The serum can be used both in the morning and evening, but if used during the day, it should be paired with a sunscreen of SPF 30 or higher .

For more detailed information, you can visit the COSRX official website.


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