For beauty industry customers, this pathway is generally not relevant because Pure GHK-Cu is mainly used as a topical cosmetic ingredient
[DOI] [PubMed] [Google Scholar] 50.Ergenc I, Kara E, Yilmaz ME, Demirtas CO, Keklikkiran C, Das T, et al
10.1126/scisignal.aam5855 153 SinhaK.DasJ.PalP
The high blood level isn't what's causing the symptoms
In explaining the addition, the United States Anti-Doping Agency (USADA) noted that BPC-157 is not currently approved for use as a human drug, but instead has been investigated for inflammatory bowel disease and soft tissue healing, although there is a concerning lack of published clinical trial data because studies appear to have been cancelled or stopped without any published conclusions. But banning a substance only makes it more attractive to a certain kind of guy