A naturally occurring peptide in your blood that declines with age. Stimulates collagen synthesis, supports hair follicle growth, and accelerates wound healing — directly counteracting menopause-driven skin changes.
GHK-Cu is a tripeptide-copper complex found naturally in human plasma, saliva, and urine. It binds copper ions and delivers them to tissues, activating collagen synthesis (types I and III), glycosaminoglycan production, and fibroblast proliferation. It also upregulates genes involved in tissue remodeling while downregulating inflammatory and tissue-destructive genes.
Collagen production drops approximately 30% in the first five years after menopause — one of the most dramatic biochemical shifts women experience. GHK-Cu directly counteracts this loss by stimulating new collagen production at the cellular level. Three new RCTs were initiated in 2025 specifically for wound healing and hair growth applications, expanding the clinical evidence base.
GHK-Cu is generally well-tolerated both topically and via injection. Mild skin irritation may occur with topical application. Injectable forms may cause injection site reactions. As a naturally occurring peptide, systemic side effects are rare at therapeutic doses.
This peptide is part of our Skin, Hair & Beauty hub — explore all peptides for this use case.
GHK-Cu stimulates hair follicle growth by increasing follicle size and proliferation rate. Three new RCTs were initiated in 2025 specifically for hair growth applications. Results vary by individual and cause of hair loss.
Both forms are used. Topical GHK-Cu (in serums and creams) targets skin directly. Injectable GHK-Cu provides systemic effects for wound healing, hair growth, and deeper tissue repair. Many women use both.
Skin improvements (firmness, texture) are typically noticed within 4-8 weeks. Hair growth results take longer — usually 3-6 months of consistent use.
Medical Disclaimer: This profile is for educational purposes only. It is not medical advice, a treatment recommendation, or a prescription guide. Always consult a licensed healthcare provider before starting any peptide therapy. Evidence ratings reflect the current state of published research and may change as new data emerges.
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