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It is a tripeptide with gamma peptide linkage between the carboxyl group of the glutamate side-chain and the amine group of cysteine, and the carboxyl group of cysteine is attached by a normal peptide linkage to a glycine

Glutathione IV benefits are wonderful, but potential interactions with some pharmaceuticals need to be evaluated case-by-case

In their review of the evidence, FDA scientists flag potential safety concerns and a lack of consistent data

Its plasma levels decline significantly with age (from ~200ng/mL at 20 to ~80ng/mL at 60), making it a key compound for aging biology and regenerative research