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GHK-Cu (Glycyl-L-Histidyl-L-Lysine-Copper) represents one of the most extensively studied naturally occurring copper peptide complexes in regenerative biology
Because these are intramuscular injections, some patients may experience mild and temporary side effects at the injection site, including: Soreness or tenderness Mild redness or swelling Minor bruising These symptoms are typically minimal and resolve quickly
Plan your peptide cycles based on goals, competition dates, and clearance needs always allowing a washout window for detection-sensitive contexts
International Journal of Stroke, 11(3), 347-355
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