EN KURALLARı OF NIACINAMIDE SERUM

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.Review: “I noticed some fading of the darker melasma spots on my skin. Day to day, I didn't notice much difference, but with c