Liposomal glutathione is a tripeptide composed of the following amino acids: cysteine, glycine, and glutamic acid. It is called the main antioxidant in the body. It has two forms: one is oxidized state, and the other is reduced state.

Liposomes are spherical vesicles composed of one or more phospholipid bilayers, which are very similar to cellular membranes. Liposomes encapsulating hydrophilic or lipophilic drugs make these vesicles useful drug delivery systems.