Peptide Profile
GHK-Cu
Copper Tripeptide-1
01
Overview
Composition
Naturally occurring tripeptide complexed with copper ions (Glycyl-L-Histidyl-L-Lysine Copper), found in human plasma, saliva, and urine
Mechanism of Action
Stimulates collagen and elastin production, promotes wound-healing pathways, reduces inflammatory signaling, provides antioxidant effects, and influences transcriptomic programs related to repair and tissue remodeling
Primary Effects
Best supported in skin and wound-repair research, where copper binding, extracellular-matrix remodeling, and antioxidant signaling are the main teaching points.
02
Discovery & Background
Discovered in 1973 by Dr. Loren Pickart while studying human plasma factors that could restore youthful function to aged liver tissue
The tripeptide GHK binds copper with high affinity, forming the active GHK-Cu complex that drives its biological effects; research has expanded to skin regeneration, wound repair, hair growth, and potential systemic benefits
Not FDA-approved for therapeutic use; primarily a research or cosmetic compound with extensive preclinical studies and some human clinical data, particularly in skin applications
03
Research Overview
Extensive preclinical studies (in vitro, animal models) and some human clinical data support GHK-Cu's effects, particularly in skin applications
- 01
Accelerates wound closure and enhances collagen synthesis
- 02
Reduces inflammation (e.g., suppressing TNF-α, IL-6)
- 03
Promotes angiogenesis and improves skin elasticity, firmness, and appearance
- 04
Human studies show reduced wrinkles, tighter skin, and better photodamage repair with topical use
- 05
Systemic effects have been explored in lung-injury and colitis models, but human translation remains uncertain
- 06
Large-scale human trials remain limited
- 07
Influences over 4,000 genes related to repair and cellular health
Not FDA-approved for therapeutic use; cosmetic and dermatologic research is more developed than systemic wellness claims
04
Safety Considerations
Monitoring
- Skin elasticity and appearance
- Wound healing progress
- Hair growth and scalp health
- Inflammation markers
- Overall tissue regeneration
Side Effects
Local
- Mild redness, stinging, or irritation can occur with dermatologic exposure
- Temporary skin sensitivity with topical overuse
Systemic
- Generally well-tolerated in reports
- Rare mild nausea or headaches
Contraindications
- Copper sensitivities or conditions like Wilson's disease should avoid it
- Limited major regulatory approval for medical treatment
- Caution is appropriate when copper metabolism is abnormal or poorly characterized
05
Educational Notice
GHK-Cu has its clearest evidence base in skin and wound-repair research, while systemic wellness and aging claims are less established. It lacks major regulatory approval for medical treatment, and clinical decisions require qualified medical oversight.
References
Research And Source List
Structured reference cards with source metadata and a direct link so users can inspect the original study/source.J Invest Dermatol | 2000
Rat wound and fibroblast paper supporting extracellular-matrix effects.Vet Surg | 2003
Rat topical wound-healing paper.J Vasc Surg | 1992
Human venous-ulcer trial showing no difference between the tripeptide-copper cream and placebo.Arch Facial Plast Surg | 2006
Human post-procedure trial with mixed results.International Journal of Molecular Sciences | 2018
Review used for broader context without treating it as direct clinical proof.FDA UNII
Official FDA registry context for the named substance.WADA
Current anti-doping source used for prohibited-in-sport review.BioMed Research International | 2015
Mechanistic review focused on skin regeneration, wound repair, and matrix biology.PubMed indexed literature query
Search results for indexed publications and abstracts related to GHK-Cu.ClinicalTrials.gov
Trial-registry search for study status, sponsors, and registered human-research context.Pattern Store