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Last verified: April 2026 | Data accuracy confirmed by ChemVerify Editorial Team TL;DR: BPC-157 is a 15-amino acid gastric pentadecapeptide (MW 1,419.53 Da) studied for tissue-repair signaling pathways, while GHK-Cu is a copper-binding tripeptide (MW 403.93 Da as copper complex) investigated for gene-regulation effects in skin and wound-healing models