How Vitamin C Brightens Skin Tone (Melanin Regulation, Oxidative Stress & Skin Clarity Explained) Vitamin C is used in products marketed for uneven tone, but “brightening” is not a standardized promise. Results depend on the cause of discoloration, the actual formula and individual tolerance. On this page What Does “Brightening” Mean in Skincare? How Melanin … Continue reading How Vitamin C Brightens Skin Tone (Melanin Regulation, Oxidative Stress & Skin Clarity Explained)