gray hair

If one is starting to get gray hair will the cleansing/parasite regimen/liver flushing help prevent or stop the graying process? Can it be reversed? I thought once the pigment was gone on those hair follicles it could never revert back to it's original color (blond, brunette, whatever). Anyone? Also, has anyone noticed a change in their hair texture once they started getting clean and everything on line (as in the liver, blood etc??). Skin changes too? Eye color change? Tweet