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.

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.

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