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While more research is needed, the current evidence suggests that glutathione injections may play an increasingly important role in preventative health and wellness strategies

The resulting holoenzyme dimer comprising the two subunits is catalytically more efficient and less subject to inhibition by GSH than GCLC alone

Hunjan MK, Evered DF

It is a vital component of the cofactors flavin adenine dinucleotide (FAD) and flavin mononucleotide (FMN), which serve as electron carriers in various oxidation-reduction reactions and play a pivotal role in regulating multiple pathways

Glutathione is called a tripeptide as it consists of three amino acids, glutamic acid, cysteine and glycine

(Source 1) Most cells produce glutathione