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. Özellikle duygun ciltlerde ortaya çıkan tahriş ve kızarıklığı ortadan kaldırmaya yarayan bu üstelikşen https://andresnakvd.blogsumer.com/29309861/en-son-beş-niacinamide-serum-kentsel-haber