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It depends on what youre after

Give it the full 8 weeks : Most people who quit early stop right before results become visible

At Perfect B, we interpret this in two ways

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

Microinfusion every 14 days with GHK-Cu rotated alongside PDRN and EGF is a defensible prevention protocol