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Dermal & ECM research

GHK-CU

Copper Tripeptide-1 (GHK-Cu)

A naturally occurring copper-binding tripeptide with a rich research history across extracellular-matrix signaling, dermal science, tissue remodeling, and cellular repair models.

Primary research pathwaysCopper binding · ECM
In simple termsSkin, hair, nails, collagen, and connective-tissue remodeling research.

Scientific overview

What is Copper Tripeptide-1 (GHK-Cu)?

GHK is a naturally occurring tripeptide with high affinity for copper(II). The GHK-Cu complex has been investigated in tissue-repair, extracellular-matrix, inflammatory, and dermal models, especially in topical and wound-related research.

Mechanism under study

How researchers examine it

Proposed actions include copper delivery, modulation of gene expression, collagen and glycosaminoglycan remodeling, and effects on inflammatory and antioxidant pathways. Evidence strength varies substantially by formulation, route, and endpoint.

Evidence landscape

What the research currently shows

Reviews describe cell, animal, wound-healing, and limited human cosmetic research. Relevance depends strongly on formulation, route, and endpoint, and topical findings should not be generalized to systemic research.

Research focus

Why it stands out

  • A naturally occurring copper-binding tripeptide with an established history in dermal research.
  • Studied across collagen, extracellular-matrix, tissue-remodeling, and cellular-repair pathways.
  • Connects skin, hair, nail, and connective-tissue research within one well-known peptide complex.

Primary references

GHK and tissue remodeling · PubMedRegenerative actions review · PubMed

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