While widely available through peptide vendors, it does not carry the manufacturing standards, safety testing, or oversight of approved medications or supplements
Honestly noticed better skin and less elbow pain, but nothing on the muscle side. Stacking GHK-Cu with BPC-157 felt like a good combo BPC helped with tendon pain, while GHK seemed to smooth skin and reduce inflammation. Using GHK-Cu For Bodybuilders GHK-Cu has its place as a biohacking peptide, but it's not at the core of a bodybuilding peptide stack
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PMID 29373820 Sikiric P, et al
Batch documentation: see Lab Reports / COAs and Quality & Testing