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The copper ion appears to stabilize and deliver GHK to cells
Copper tripeptides beyond GHK-Cu, manganese tripeptide-1, silk fibroin peptides, and others have thin or no clinical backing
The bioavailability is likely lower than injectable forms, but the convenience of oral administration may offset this for some applications
S.ChababiW.MayhueM.et al (2015)
Zeljko Kojadinovic, MD, PhD Neurosurgeon and Pain Management Specialist Last medically reviewed: June 10, 2026 Who this page is for This page is for patients with trigeminal neuralgia or persistent facial pain that did not improve despite medications or previous treatments
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