Healthcare providers should maintain open communication about all treatments patients are using and provide evidence-based guidance prioritizing interventions with established safety and efficacy profiles
Safety and Side Effects GHK-Cu has a well-established safety profile, benefiting from a long history of use in cosmetic dermatology
Glutathione peroxidase, superoxide dismutase, and glutathione S-transferase activities [PMID: 6465684] Laboratory literature summary: Glutathione peroxidase, superoxide dismutase, and glutathione S-transferase activities in research subjects lung
It depends on the person and tolerance of course, but in general the most tried and true studies when it comes to repeatable high impact with a proportional relative lack of side effects, but not none, was like three to six milligrams a kilogram
It's a complete skin system with clinical dosages, not just a single ingredient