Glutathione
Glutathione is a tripeptide composed of the amino acids L-glutamine, L-cysteine and glycine. L-glutathione is part of the natural resources our body has to protect our skin from reactive oxygen species. Glutathione is a crucial element in the antioxidant defense system of the cell, together with superoxide dismutase, catalase, alpha-D-tocopherol (vitamin E), ascorbic acid (vitamin C), etc. For this many reasons, it is a good idea to supplement endogenous glutathione with some applied topically.