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At APEX Biolabs, GHK-Cu is supplied as a high-purity lyophilised peptide powder manufactured under strict quality-controlled standards for scientific and investigative research use only

For SubQ or IM injection, only research-grade lyophilized peptide reconstituted with bacteriostatic water should be used

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While not all clinicians agree, the science published so far is pretty clear

Researchers often rely on COA documentation to verify that a peptide meets expected standards before incorporating it into a study