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In the AHK-Cu vs GHK-Cu debate, GHK-Cu has the larger body of research behind its potential benefits, while AHK-Cu's research is more specifically focused on hair applications
Porphyria: The use of diclofenac and anti-inflammatory steroids in patients with hepatic porphyria should be avoided
it distributes through your whole system regardless
PMID: 4762237 Seiwerth S, et al
Are there any side effects?+ Most people tolerate Vitamin B12 injections very well
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