Copper accumulation is theoretically possible with long-term, high-dose use, particularly in individuals with genetic copper metabolism disorders like Wilsons diseasethough the copper content in therapeutic GHK-Cu doses is minimal compared to dietary intake
doi:10.7150/ijms.118118
If, however, Mike flat out recommended the peptide by saying something like, I think you should take this, I would find that ethically dubious
Why Canadian Researchers Choose Koi Peptides for the Tesamorelin Peptide Documented Chemistry - No Black-Box Sourcing Per-lot documentation pulls four analytical readings (HPLC chromatogram, deconvoluted mass spectrum, C-terminal amidation verification, endotoxin reading) into a single file tied to the lot identifier printed on the vial label
Medical oversight helps ensure appropriate evaluation, dosing discussions, and monitoring, while addressing safety and regulatory considerations.