some of my hair have turned grey or white. i have noticed that all the hairs I lose are black, and not a single grey hair falls out. Would you say that if hair turns grey they wont fall out?
That’s an interesting observation, but I really don’t know. Melanin (eumelanin is the type of melanin) is what produces the black hair color, and when it is lost in aging, the hair turns gray. It only impacts hair color, not the hair follicle itself.