Melanocytes are the body's pigment producing cells, found in the skin, hair roots, and eyes. Vitiligo is caused by the destruction of these cells, hence the importance of nourishing them.
"The most important minerals [for melanocytes] are iron and copper, as well as vitamin C and protein, particularly the amino acid tyrosine,” says David Salinger, director of the International Association of Trichologists.
“In fact, some trichologists give patients tyrosine [supplements] to see if it will help the pigment, and sometimes it does.”
But, he says, it only works if there is a nutritional deficit that needs correcting.