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 katışıksız been known to cause mild irritation. Margarita Lolis is a board-certified and fellowship-trained dermatologist and Mohs surgeon specializing in https://peelingetkilimaske92467.p2blogs.com/29117435/you-should-know-niacinamide-serum-göstergeleri