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Schalkwijk, J
Works great for skin care and nails
A 2016 comparative study published in Nature Scientific Reports directly compared copper compounds and found GHK-Cu non-cytotoxic across all tested concentrations up to 5,800 micromolar over 72 hours
Initial symptoms often include fever, headache, fatigue, and a characteristic skin rash called erythema migrans (a bullseye rash only present in less than 10% of cases)
Rare cases of severe anaphylactic reactions have been reported with IV use
But it doesnt work on its own
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