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Now that injectable GHK-Cu is legally available, some providers may suggest it for hair loss protocols

Skin saturation limits how much peptide penetrates regardless of concentration

doi: 10.1016/0024-3205(85)90238-3

I've just had a look and found one site which said it was available in Spain (as cyanocobalamin) and one which said it wasn't

Despite more than 500 published preclinical studies (primarily animal and cell-culture models from Sikiric and colleagues at the University of Zagreb), there have been essentially no registered human clinical trials for BPC-157 in the United States