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This change affects compounding pharmacies, clinicians, and anyone researching this copper peptide and it's been a long time coming
Q2: How does GHK-Cu work on the skin specifically
The peptides small size and charge profile allow it to penetrate the stratum corneum, though penetration efficiency depends heavily on the vehicle
Product configurations commonly include lyophilized GHK-Cu powder in sealed glass vials, with labeling that documents peptide content (e.g., 50 mg or 100 mg), suggested reconstitution volumes, and research-use disclaimers
Some researchers run 12 weeks on / 4 weeks off for more aggressive anti-aging protocols
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