Cost, manufacturing, reproducibility Synthesising D-retro-inverso peptides with high purity is non-trivial
Notice that CBS fluxes do not differ much between males and females, so this is not the reason that GSH differs so dramatically in males and females
^ Glutathione-associated Enzymes in Anticancer Drug Resistance1
A Simple Treatment with Minimal Downtime and Side Effects Because glutathione is a naturally occurring substance in the body, this treatment is considered to have minimal downtime and side effects, and can be received as a simple IV treatment
But according to Luke Turnock, a criminologist in the U.K., around 2010, in online forums, bodybuilders began talking about peptides, and some seem to have found their way to Sikirics scientific papers
In a small study, high-dose intravenous glutathione was administered twice daily for 30 days to patients with early, untreated Parkinson's disease