ghk-cu tolerance desensitization effectiveness over time Biological efficacy of after ionic-liquid loading. (a) Cellular ghk-cu tolerance desensitization long-term use

Martin, S

Individuals with certain chronic diseases, pregnant or breastfeeding women, and those allergic to specific peptides should consult their primary care physician before starting their treatment

That said, the combination itself has not been clinically validated there are no controlled human trials of this specific blend, and the supporting data for each peptide is largely preclinical (animal) work and anecdote

It is more dangerous with higher doses or prolonged usage

The lysine side-chain amino group is not directly involved in copper coordination but contributes to the overall charge and solubility of the complex