milk thistle and l-glutathione Reduced Glutathione Supplement 500mg with Alpha Lipoic Acid 50mg & 100mg, Glutathione Reduced Form, BioSchwartz, 30 ct, 30-day Supply : Target Liposomal Glutathione Pure Reduced L-Glutathione
Description
Role of reduced glutathione (GSH) in detoxification of reactive oxygen species: GSH uses the sulfhydryl (SH) functional group of its cysteine residue to protect cells against oxidative damage in at least two ways

This is because it can increase transepidermal water loss and decrease hydration to disrupt the skin barrier

Chougnet, C

We note, however, that human studies are controversial on this point
