PEPTIDESTAT
Research onlyLongevitySubcutaneousEvidence 2/5

GHK-Cu

Also known as: Copper tripeptide-1

Naturally occurring tripeptide bound to copper. Studied for wound healing, skin remodeling and gene-expression effects related to tissue repair.

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GHK-Cu product image
Drug class
Copper peptide complex
Primary targets
Copper transport / fibroblast signaling
Dose reference
Topical cosmetic ranges; no systemic dosing established
Half-life
Hours
Developer / origin
Pickart (discovery)
Reference year
1973
Evidence score
2/5 - Ingredient-level hair evidence
Evidence 2/5

Ingredient-level hair evidence

GHK-Cu has skin-repair, delivery, and ex vivo hair-follicle evidence, but not strong finished-product human hair-regrowth trials.

Mostly animal, ex vivo, cell, or indirect evidence.

Evidence basis

  • Ex vivo hair follicle data
  • Skin regeneration reviews
  • Topical delivery studies

How to read this entry

Dose references and half-life values are pulled from trial protocols, labels, reviews, or published summaries where available. They are context for research and comparison, not a personal dosing recommendation.

Status matters: approved drugs have regulated indications; investigational compounds are still being studied; research-only peptides do not have established human dosing, safety, or efficacy for consumer use.

GHK-Cu guides

Read the matching guide or adjacent research pages for more context.

GHK-Cu for Hair Growth: Copper Peptide Evidence and LimitsGHK-Cu has real skin and follicle biology behind it, but the hair-growth evidence is still mostly early-stage and ingredient-level.Best Peptides for Hair Growth: Evidence, Protocols, and LimitsA practical hair-growth hub: which peptide and peptide-adjacent ingredients have real rationale, what is only cosmetic, and what still beats them for evidence.Bryan Johnson Hair Protocol: Peptide Shampoo, Serum, Laser Cap & MinoxidilThe Bryan Johnson hair protocol: Blueprint peptide shampoo, peptide serum, laser cap, minoxidil, ingredient roles, and supporting research.Peptide Shampoo: Ingredients, Evidence, and How to Use ItPeptide shampoo can support scalp care, but rinse-off contact time limits what it can do. Here is how to judge peptide shampoos, ingredients, and the Blueprint option.

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Longevity Peptides

Compare longevity peptides by evidence quality, mechanism and practical research limits, starting with GHK-Cu and copper peptide data.

Research & educational purposes only

The information on PeptideStat is for educational and research purposes only and is not medical advice. Many peptides discussed are research compounds not approved for human use. Always consult a qualified healthcare professional before making any health decisions. Articles may contain affiliate links — we may earn a commission at no extra cost to you.