Stacy London's signature streak is actually a medical condition—she's had poliosis, which causes hair follicles to go gray, ...

If hair is frequently bleached or dyed with peroxide-based formulas, excess hydrogen peroxide can build up in the follicle. Over time, that oxidative stress may make gray or white hairs more likely to ...

Rest assured, there’s no right or wrong time to go gray. “Research has even found that textured hair starts graying usually in the 40s and 50s, while straighter hair textures usually begin graying in ...