Hair loss, GH3 and kombucha

Frederic asks whether GH3 (with kombucha) can restore gray hair to its natural color as someone claimed.

The Wonders say GH3 will not get his hair back: in his case the sebums have essentially stopped hair growth and killed the roots, leaving only a downy fluff that could, with nourishment, eventually produce a reasonable amount of hair, but over 10 to 12 years rather than one or two.

They add that his hair loss was not caused by any health problem or nutritional deficiency but by a small genetic flaw.