l glutathione cream benefits L- Day & Night for Mens- 50 g – Trycone 1.76oz L- Glutathione and Vitamin
Description
Enhanced Skin Hydration GHK-Cu boosts skin hydration by stimulating glycosaminoglycan production, such as hyaluronic acid, which retains moisture for a plump, radiant complexion

New York: Penguin Press

Noninvasive quantification of human brain antioxidant concentrations after an intravenous bolus of vitamin C
But its not the only use