oral glutathione bioavailability limited delivery of glutathione: antioxidant function, barriers and strategies – ScienceOpen Systematic Review of the Efficacy
Description
(PubMed) Yes allergic reactions from mild rash/itching to severe anaphylaxis have been reported

L.KokjohnT

Because the nutrients are infused into your blood circulation instead of going through your digestive tract, your body absorbs almost all of them

Am J Respir Cell Mol Biol 2006;35:479487
