Hair turns grey when the cells that give it colour, called pigment cells, slow down or stop making pigment. These pigment makers sit near the base of each hair follicle and supply Melanin Rich Foods for Healthy Hair and Preventing Greying New findings suggest how stress may trigger gray hair Harvard Gazette Liposomal Glutathione Lemon Mint (1.7 fl oz) by Quicksilver Scientific IPM Supplements SATIN GLUTATHIONE PLUS 10 Days Trial SATIN SKINZ HQ Results RNA ACG Glutathione Extra Strength 2oz Juneva Health