There are generally very few side effects that you can expect with glutathione injections, although there are a couple of minor risks
By designing a thiol-activatable fluorescent gold nanoprobe that can bind to serum protein and be transported to the liver, we non-invasively imaged the biotransformation kinetics in vivo at high specificity and examined this process at the chemical level
(PubMed) Namazi N, Larijani B, Azadbakht L
Cycling Glutathione is endogenous -- the body produces it continuously in every cell
Over time, she says, vitamin C can help prevent dark spots from forming in the first place so it looks glowyin addition to evening out skin tone
The efficacy of antioxidant enzymes in asthma treatment has been also investigated, and a study of liposome-encapsulated SOD and CAT generated promising results (82)