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Compound Guide

GHK-Cu UK research guide

GHK-Cu is a naturally occurring copper-binding tripeptide (glycyl-L-histidyl-L-lysine) complexed with copper(II) — the most studied copper peptide in dermal and extracellular-matrix research.

5 min read · Updated 2026-09-03

What GHK-Cu is

The GHK tripeptide has a high affinity for copper(II) ions, and the resulting complex gives the material its distinctive blue colouration. It occurs naturally in human plasma at concentrations that decline with age, which is why it appears throughout skin and matrix-remodelling literature.

UK Peptide supplies GHK-Cu as a 50 mg lyophilised vial verified to 99%+ purity.

What the literature examines

Research on GHK-Cu concentrates on extracellular-matrix remodelling, collagen and glycosaminoglycan synthesis pathways, and antioxidant signalling in dermal models.

Handling copper peptides

Copper complexes are light-sensitive. Store lyophilised at -20°C in the dark, keep reconstituted solution refrigerated and shielded from light, and avoid contact with reducing agents that could disturb the copper complex.

Buying in the UK: what to expect from UK Peptide

Every vial is held in UK stock at -20°C in our Central London facility, so there are no customs delays, no overseas drop-shipping and no month-long waits. Orders placed before 2pm Monday to Friday are dispatched the same working day.

Express overnight delivery is £9.99 nationwide and free on orders over £200. Parcels are vacuum-sealed, gel-cooled, insulated and discreet.

  • 99%+ minimum purity by HPLC, identity confirmed by mass spectrometry
  • Independent third-party UK laboratory testing — never in-house self-certification
  • Visa & Mastercard accepted (no American Express)
  • Research use only — not for human or veterinary use. Purchasers must be 18+

Frequently asked questions

What is GHK-Cu used for in research?
It is studied in extracellular-matrix remodelling, collagen synthesis and antioxidant-signalling models. It is supplied for in-vitro laboratory research only.
How much is GHK-Cu 50mg in the UK?
£19.99 per 50mg vial including VAT, dispatched same day from Central London before 2pm.

All products referenced are laboratory reagents supplied for in-vitro research use only. They are not medicines, supplements or cosmetics, are not licensed for human or veterinary use, and no dosing guidance is provided. Purchasers must be 18 or over.