Asked by: Alice Wang, Epping
Yes. Hair colour comes from pigment cells in the follicle, which add pigment to the hair shaft as it emerges. As we grow older, the follicles gradually produce less pigment and, eventually, stop colouring the hair at all.
Plucking a grey hair doesn’t revitalise the pigment cells, so the next hair to emerge from that follicle will also be grey.
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Authors
Luis trained as a zoologist, but now works as a science and technology educator. In his spare time he builds 3D-printed robots, in the hope that he will be spared when the revolution inevitably comes.
