Greatest Kılavuzu NIACINAMIDE SERUM 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 saf been known to cause mild irritation.Review: “I’m happy with the results. My skin definitely improved over the testing period; it looks much clearer, softer, and