Glutathione as a compound is a tripeptide, i.e., it contains three amino acids made by the liver that works to reduce the free radical load of the body, causing oxidative stress. Your diet is where the amino acids glycine, glutamic acid and cysteine all come from to form this master antioxidant compound
There are oral products and injectable forms, and the route may affect where it acts most
I like the pump bottle of Oakway Naturals
Eur J Drug Metab Pharmacokinet 31:103108 Kirkman SK, Zhang MY, Horwatt PM, Scatina J (1998) Isolation and identification of bromfenac glucoside from rat bile
A deeper look at whether glutathione supplements can be absorbed helps explain why the conversation has shifted
The collagen fibril organization and fibroblast proliferation markers were documented as key parameters