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Q: What purity is required for research-grade GHK-CU

I buy some things that might help and then don't want to try in case they make me worse or cause side effects
Does BPC-157 survive stomach acid
10.1007/s12010-022-04284-x 255 ShaabanA

A study by Novinscak et al
It does not have the chemical structure or the side effects associated with anabolic steroids or hormones
