The medical term for hair graying is canities. Hair turns gray (or white) when your hair follicles stop creating melanin. Melanin is the substance that gives your skin and hair color.

The main concern related to oxidative permanent colouring is the risk of irritation and allergic reactions. Hair dye residues ...

Hair dye stains on the skin are a common concern when coloring hair at home or in salons. These stains typically occur when ...