Cosrx The Niacinamide 15 Serum

COSRX The Niacinamide 15 Serum is a highly concentrated skincare solution featuring 15% niacinamide combined with acetyl glucosamine and zinc PCA. This powerful formulation helps control sebum production, brighten skin tone, minimize pores, and improve overall skin texture. Key features: • Contains 15% niacinamide concentration • Features acetyl glucosamine and zinc PCA • Helps regulate sebum production • Brightens skin tone • Minimizes appearance of pores • Non-comedogenic formula • Suitable for acne-prone skin The serum should be applied after cleansing during the serum phase of your skincare routine. Use a few drops and gently massage into the skin, working from the center of the face outward. Clinical studies have shown significant improvements in sebum control, blackhead/whitehead reduction, and overall skin tone within 4 weeks of regular use. The formula is designed to work synergistically with its key ingredients for maximum efficacy.