Niacynamide serum is an excellent formula that will restore freshness to problematic skin. 10% niacinamide optimizes the work of sebasceous glands, nouirishes and has antibacterial properties. The complexion will be brightened and visibly nourished. Zinc narrows pores, works perfectly on acne skin - regenerates and soothes it. Salicylic acid effectively cleanses pores, removes imperfections, including blackheads and has anti-acne properties.