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McCarthy are back to separate the facts from the fiction
No human clinical trials of Dihexa itself have been published in peer-reviewed literature as of 2026
Current Research Limitations Most clinical studies on GHK-Cu involve: Topical formulations In vitro research Animal models Systemic (non-injectable) delivery There is insufficient evidence in peer-reviewed literature to support: standardized injection techniques validated injectable dosing regimens long-term safety or efficacy data for injectable use As a result, clinicians should approach injectable discussions with caution and rely on evidence-based peptide education rather than anecdotal protocols
At least 3-6 months of regular use is needed to see benefits
Fibroblasts are the cells responsible for producing collagen, the primary structural protein in tendons
