topical glutathione benefits as a skin whitening agent: Facts, myths, evidence and controversies Glutathione for the skin |

While some in-vitro (test tube) and animal studies suggest that copper peptides may act as a mild DHT blocker by inhibiting the 5-alpha reductase enzyme, it is important to note that clinical human data is still evolving, and it is not as potent as prescription DHT blockers (like Finasteride)

High doses are generally considered safe, though some people may experience minor side effects

If you are going to offer this, your nurses or injectors need crystal clear instructions on GHK-Cu dosage protocol

Thinning skin, vasculitis, purpuric dermatosis, platelet deficiency, liver disease, vitamin K deficiency, vitamin C deficiency, moving your body during the injection, or dehydration may also cause bruising