5 How to spot a real copper peptide product: + Look for "Copper Tripeptide-1" or "GHK-Cu" in the first third of the ingredient list + The formula should appear blue or blue-green that color is the copper-peptide complex itself + Packaging should be opaque and airless (copper peptides are light- and oxygen-sensitive) + pH should sit in the 5.07.5 range for stability For a deeper dive into the molecular science, check out our dedicated GHK-Cu ingredient page
10.1016/S0021-9150(00)00739-5 14 GiustariniD.FantiP.SparatoreA.MatteucciE.RossiR
You can do a simple pinch test at home to help figure this out
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Follow the manufacturer's Instructions for Use carefully