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Avoid repeated freeze-thaw cycles, as this can degrade the peptides
The first dose is usually 1000 mcg weekly
Against retinoids: GHK-Cu in the Abdulghani trial outperformed tretinoin without the irritation, peeling, and sun sensitivity that retinoids commonly cause
Proximal injection near the injury site is preferred for musculoskeletal applications because it appears to increase local tissue concentration
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