Glutathione (y-L-glutamyl-L-cysteinyl-glycine) is a tripeptide thiol synthesized in the cytosol of every human cell through the sequential action of glutamate-cysteine ligase and glutathione synthetase. It is the most abundant non-protein thiol in mammalian cells, maintaining the intracellular redox environment through its reduced (GSH) and oxidized (GSSG) forms. Glutathione serves as a cofactor for glutathione peroxidases, glutathione S-transferases, and the glutaredoxin system — collectively constituting the cell's primary defense against oxidative damage to proteins, lipids, and DNA.

Every cell in the human body produces glutathione — a molecular shield engineered into the fundamental chemistry of life. The GSH/GSSG ratio is one of the most tightly regulated parameters in cell biology, reflecting a principle of constant vigilance. Cells are not left unprotected

the defense system is built directly into the cellular machinery, ensuring that every cell carries its own redox shield.

At 99%+ purity (HPLC verified), our Glutathione 1500mg is formulated for research into redox biology, thiol-mediated cellular defense, and glutathione-dependent enzymatic pathways.