The initial step of glycation is the Maillard reaction (Figure 1)a covalent interaction between the carbonyl group of glucose or another reducing carbohydrate and an amino group (or other nucleophilic functional group) of a biomolecule, resulting in the Schiff base formation
Pickart stated that GHK-Cu has a favorable safety profile, highlighting that there is no indication that it causes side effects in test subjects [2]: The molecule is very safe and no issues have ever arisen during its use as a skin cosmetic or in human wound healing studies. In a 2018 review based on new genetic data, he reiterated that all biological actions associated with GHK appear to be health positive. He pointed to over four decades of GHK research encompassing cell, tissue, and animal studies, also noting the peptides inclusion in commercial anti-aging and cosmetic products such as creams, liposomes, and dermal patches [1]
That being said, I think theres a spectrum of reasonable reactions to be had to this situation, none of which are Mike is totally innocent, or Mike is a cheater. Its fair to say that Mike should have been aware that BPC-157 was on WADAs list of banned substances
GHRH and GHRPs bind to completely different receptors