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GHK-Cu has stronger cosmetic and dermatological evidence but limited systemic therapeutic data
Sterile water reconstitutions should be used within 24 hours
A randomized double-blind split-face trial found GHK-Cu supported a 55.8% reduction in measured wrinkle volume after eight weeks
Tirzepatide delivered more than double that in its mid-range dose and nearly triple it at the highest dose
Furthermore, the lyophilised format ensures long-term stability during storage and transport
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