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How GHK-Cu Compares to Retinoids, Vitamin C, and Other Anti-Aging Ingredients The 1998 head-to-head trial by Abdulghani measured procollagen synthesis side by side, and the copper-binding peptide outperformed both vitamin C and tretinoin
Use a fresh needle for every draw
For those on maintenance doses above 5mg, the larger vial sizes provide better value and longer usability
Timeline depends on the indication
04 Missed dose This page does not provide missed-dose guidance any questions about an existing regimen should go to a qualified clinician
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