l-glutathione capsule BESTVITE 500mg (60 Vegetarian Capsules) - No Stearates - Vegan - Non GMO We Like Vitamins NSF Certified

It's made by attaching a glucose molecule to ascorbic acid

43:340346 Mineri R, Rimoldi M, Burlina AB, Koskull S, Perletti C, Heese B, von Dbeln U, Mereghetti P, Di Meo I, Invernizzi F, Zeviani M, Uziel G, Tiranti V (2008) Identification of new mutations in the ETHE1 gene in a cohort of 14 patients presenting with ethylmalonic encephalopathy

An analysis of available data in this field suggests that desensitization with cyanocobalamin seems to be an effective way to obtain tolerance to vitamin B12, allowing for long-term supplementation of this vitamin regardless of the chemical form, dose size, frequency, or route of administration

Glutathione is present in millimolar concentrations in most mammalian cells and it is involved in several fundamental biological functions, including free radical scavenging, detoxification of xenobiotics and carcinogens, redox reactions, biosynthesis of DNA, proteins and leukotrienes, as well as neurotransmission/neuromodulation