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pmc4508379 ghk-cu 100mg | Copper Tripeptide-1 Research Peptide | HPLC ≥99% Rx BPC-157 & TB-500 Blend Size:10 mL (1000 mcg / mL) – Form:MicroTablet fine-lines What to check: Milligram content per component, lot number, matching COA, named laboratory, purity result https://m.media-amazon.com/images/I/819h28S1ucL.jpg