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GHK-Cu is a naturally occurring tripeptide-copper complex (Glycyl-L-Histidyl-L-Lysine bound to Cu2+) originally isolated from human plasma
Its plausible hair-relevant actions are on the follicle and its environment (papilla, vasculature, inflammation), not proven anti-androgen activity
Experimentally it has been demonstrated to accelerate the healing of many different wounds, including tendons, muscles, nervous system and superior healing of damaged ligaments
FDAs 2026 assessment found insufficient clinical safety information and insufficient evidence to establish effectiveness
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