Tirtir niacinamide 20% serum is one powerful skin care product with one high concentration of niacinamide 20 % , as smoothes skintone, controls oil past, the laws improves hydration lining one glowing, youthful complexion.Application:apply one couple drops on face past, the laws throat after purification past, the laws use of toner. Pat carefully, till product is fully absorbed. Tirtir niacinamide 20% serum 30 ml
