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The skin barrier limits how much peptide reaches the follicle, which is why community protocols sometimes add microneedling a delivery enhancement validated for other hair compounds (PMID 23960389, PMID 40225275) but not for AHK-Cu specifically
Symptoms requiring immediate medical attention include difficulty breathing, facial swelling, or widespread urticaria
These mechanisms are interesting on paper, but they come almost entirely from animals and cells
A peptide nominated as an acetate salt may be treated differently than its free base form
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