This stability period lasts several months after its made
Defined: Glutathione Glutathione (GSH) is an important antioxidant in plants, animals, fungi, and some bacteria and archaea, preventing damage to important cellular components caused by reactive oxygen species such as free radicals, peroxides, lipid peroxides, and heavy metals.[2] It is a tripeptide with a gamma peptide linkage between the carboxyl group of the glutamate side-chain and the amine group of cysteine (which is attached by a normal peptide linkage to a glycine)
Can J Physiol Pharmacol 90:713738 Tsai J-HM, Hamilton TP, Harrison JG, Jablowski M, van der Woerd M, Martin JC, Beckman JS (1994) Role of peroxynitrite conformation with its stability and toxicity
T cell-mediated additive cytotoxicity death by multiple bullets
Because it protects cells so effectively, it may inadvertently protect cells that medical treatments are trying to target