How long does it take for a single strand to turn white?
Title. How long does it take for one strand to go from pigmented to white. Like I sometimes find hairs that are black towards the ends, but the roots are white and have lost their melanin. I dunno if this questions makes sense to yall. Because I feel like sometimes I get grey hairs overnight. Or is the process of becoming depigmented very slow and I am just hallucinating.