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Pickart and colleagues reported in Nature (1980) that the tripeptide facilitates copper uptake into cultured cells, and potentiometric titration places the GHK-Cu stability constant at log K of approximately 16.4, marginally above the copper transport site of human serum albumin at roughly 16.2

WADA's rationale is that BPC-157 is a pharmacological substance not approved for human therapeutic use by any regulatory authority, and its tissue repair properties could provide a performance-enhancing benefit

No therapeutic or diagnostic use is implied or authorized

The mechanism by which BPC-157 induces these effects remains ambiguous