From a dye that works beautifully on lighter hair, to nourishing, plant-based color, to a top-notch touch-up spray, these colorants are stylist-approved for keeping grays at bay.

Previous studies have also demonstrated potential links between space travel and an increase in oxidative stress, which experts have suggested contributes to aging and, in turn, graying hair. However, ...

For men, grey hairs normally start at the temples ... There are two main types of melanin that determine hair color. Eumelanin is a black-brown pigment and pheomelanin is a red-yellow pigment.