GHK-Cu: Peptide Profile

Sequence, molecular data, research status and testing standards for GHK-Cu — written for Canadian researchers.

What Is GHK-Cu?

GHK-Cu is a copper(II) complex of the naturally occurring tripeptide glycyl-L-histidyl-L-lysine. It is widely studied in dermal and cellular research for its copper-binding properties.

What the Research Says About GHK-Cu

GHK-Cu is one of the more extensively studied peptides in dermatological and cosmetic science, with in-vitro and topical studies on collagen synthesis, skin remodelling and copper transport. Copper peptides appear as ingredients in some cosmetic products; injectable use is not authorized in Canada.

Peptide Authority summarizes published research for educational purposes only. Nothing here is medical advice or a claim that GHK-Cu is safe or effective for any use.

GHK-Cu Storage & Handling

Lyophilized (freeze-dried) GHK-Cu is most stable frozen at −20°C or colder for long-term storage, or refrigerated at 2–8°C for short periods. Keep vials sealed, dry and away from light, and allow them to reach room temperature before opening to prevent condensation.

What to Look for in a GHK-Cu Certificate of Analysis

  • HPLC purity of 98–99% or higher, shown as a chromatogram with one dominant peak
  • Mass spectrometry with an observed mass matching 403.9 g/mol
  • A lot number that matches the label on your vial
  • An independent, named laboratory and a recent test date

Learn more in our guide to peptide lab testing and COAs.

Is GHK-Cu Legal in Canada?

GHK-Cu is not authorized by Health Canada as a drug. It may only be sold in Canada as a research chemical for in-vitro laboratory use — not for human or animal consumption. Read how peptides are regulated in Canada.

FAQ

GHK-Cu FAQs

What is GHK-Cu?

GHK-Cu is a copper(II) complex of the naturally occurring tripeptide glycyl-L-histidyl-L-lysine. It is widely studied in dermal and cellular research for its copper-binding properties. It is also known as Copper tripeptide-1, glycyl-L-histidyl-L-lysine copper(II).

Is GHK-Cu legal in Canada?

GHK-Cu is not authorized by Health Canada as a drug, so it cannot legally be sold for human or animal use. In Canada it is sold as a research chemical for in-vitro laboratory use only. This is general information, not legal advice.

Where can I buy GHK-Cu in Canada?

Peptide Authority supplies HPLC-tested, lot-coded GHK-Cu for research use, now serving Edmonton with Canada-wide shipping coming soon. Wherever you buy, insist on a third-party COA that matches the lot number on your vial.

How should GHK-Cu be stored?

Store lyophilized GHK-Cu frozen at −20°C for long-term stability or refrigerated at 2–8°C short-term, protected from light and moisture.

Related Peptide Profiles

Regenerative Research

BPC-157

15 amino acids · 1419.5 g/mol

WADA: prohibitedView
Regenerative Research

TB-500

7 amino acids (acetylated) · 889.0 g/mol

WADA: prohibitedView
Metabolic & Cellular Research

MOTS-c

16 amino acids · 2174.6 g/mol

Research profileView
Metabolic & Cellular Research

NAD+

Dinucleotide (not a peptide) · 663.4 g/mol

Research profileView

Browse the Full Peptide Library

Educational Content & Research Use Only

This profile is for information only and is not medical advice. Products sold by Peptide Authority are for in-vitro laboratory research only and are not for human or animal consumption. See our full disclaimer.