glutathione injections intramuscular or subcutaneous Reasons to Get a Injection Can Glutathione Be Given Intramuscularly?

Any assertion to the contrary is not supported by evidence It IS fair to say that there is no clear evidence of harm in a relatively data free zone in humans, and that there is a plausible argument for benefit based upon in vitro and animal studies as well as mechanism of action - particularly with BPC

Journal of Physiology-Paris , 112(1), 1-10

the culture medium was exchanged by an extracellular solution containing (in mM) 140 NaCl, 2.5 KCl, 1 MgCl 2 , 3 CaCl 2 , 25 glucose, and 5 HEPES

GHK-Cu is used in laboratory research, as well as in skincare and hair products for its potential to promote skin healing and hair growth