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Individuals with Wilson's disease or copper metabolism disorders should avoid GHK-CU entirely
Risks include nausea, cardiovascular effects, priapism (prolonged erection requiring emergency care), skin changes, and unknown long-term effects
Always consult with a qualified healthcare professional before beginning any new wellness protocol
Add in its demonstrated nerve-regenerative properties, and you have a multi-faceted compound that could theoretically address ED from several angles: vascular, chemical, and neurological
Alcohol is metabolized by the liver and messes with the filtration as well
The strongest human evidence is topical, including the Leyden 2002 photoaging trial and a 2023 IRB-approved 21-woman topical NEEL gel study reporting an average 28% increase in skin collagen density at 3 months
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