NIACINAMIDE SERUM Aptallar için
Is niacinamide or vitamin C better for skin? Both niacinamide and vitamin C are used to address hyperpigmentation and are usually well-tolerated by many skin types, though vitamin C has been known to cause mild irritation.Vitamin C serums, retinol, and hyaluronic acid may get a lot of attention, but there's a dark horse out there: niacinamide. The