Can melanin come back from hair follicles?

Melanin is the pigment that gives hair its color. As we age, the melanocytes, which are the cells that produce melanin in our hair follicles, can slow down or stop producing melanin. This leads to hair becoming gray or white.
Currently, there is no scientifically proven method to reactivate melanocytes and restore melanin production in hair follicles once it has stopped. This process is largely believed to be genetic and a natural part of aging.
However, research is ongoing, and some studies suggest certain nutrients and compounds may potentially support melanin production. These include vitamins like B12, D, E, and minerals like copper and zinc. However, more research is needed to confirm these findings.