OSRX The Niacinamide 15 Serum is a highly-concentrated serum that combines the maximum concentration of niacinamide with optimal ratios of synergistic ingredients for total acne and dark spots control. It contains 15% niacinamide which helps regulate sebum production, brighten the skin tone and improve the appearance of enlarged pores Clinical Results in 4 weeks Suitable for acne prone skin use (Non-comedogenic) - 45.27% improvement of activated sebaceous glands - 48.07% improvement of oil synthesis amount - 42.72% improvement of number of blackheads - 50% improvement of number of whiteheads - 15.50% improvement of (hidden melasma and blemishes) - 19.47% improvement of pigmentation (visible melasma and blemishes) - 2.59% improvement of triple-complexion skin tone (brightness) - 24.89% improvement of triple-complexion skin tone (redness) - 11.73% improvement of triple-complexion skin tone (yellowness) Benefits: Combines the maximum concentration of 15% niacinamide with optimal ratios of synergistic ingredients for total acne control. Helps diminish the appearance of congested pores. Controls the production of sebum and oil. Exfoliates and smoothens rough skin for a soft touch. HOW TO USE After cleansing, during the serum phase, apply a few drops to the skin. Use fingertips to gently massage and absorb the serum, starting from the center of the face working towards the edges.