Why Vitamin C Can Stain Your Skin (and How to Avoid It!)
Vitamin C is one of the few skincare ingredients with a decent amount of independent research to back up its properties, like its brightening and anti-wrinkle benefits. Related Post: Vitamin C – what does it do for your skin? But those of you who are vitamin C enthusiasts may have noticed that with some vitamin C serums that contain ascorbic acid, …