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GHK-Cu (Copper Peptide)

Price range: $40.00 through $57.50

GHK-CU is a research material associated with peptide-metal complex research. Intended for laboratory research and analytical use only; not for human or veterinary use.

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SKU: GHKCU-A Category: Tag: Brand:

Molecular Structure Explorer

GHK-Cu

Structure of the compound on this page.

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Molecular structure of GHK-Cu

Data from PubChem (NCBI) or a reviewed manual entry, shown only after review. 3D models are computed conformers, not experimental structures. Browsing does not change the product, option or cart. For laboratory research use only.

Product Details

GHK-Cu (Copper Peptide) – Research Grade

GHK-Cu (Copper Peptide) from Cleared Peptides is a research-grade compound supplied for laboratory and analytical investigation. Every lot is third-party tested, and the batch Certificate of Analysis is published before sale. Specifications, CAS number and molecular formula are listed below.

Research use only. GHK-Cu (Copper Peptide) is supplied for laboratory research. It is not a drug, food, cosmetic, or dietary supplement. It is not FDA-approved. It is not for human or veterinary administration. This page does not give a dose or a method of administration. A study cited on this page describes that study’s own test article. It does not make this lot an approved medicine. To check a fact, open the PubMed or DOI link, confirm the authors and year, and match the paper’s compound name, CAS number, or sequence to the specification table. The full method is on the research desk page. Identity and purity for a lot are only what that lot’s certificate of analysis reports. An HPLC percentage is not a sterility result and not an endotoxin result unless the certificate prints those tests.

GHK-Cu Specifications

CompoundGHK-Cu
SynonymsCopper tripeptide-1; Glycyl-L-histidyl-L-lysine copper(II)
CAS Number89030-95-5
PubChem CID71587328
Molecular FormulaC14H22CuN6O4
Molecular Weight401.9 g/mol
Sequence / StructureGly-His-Lys · Cu(II)
FormLyophilized (freeze-dried) powder
Purity≥99% by HPLC (verified per batch – see COA)
StorageStore at −20 °C, sealed, dry and protected from light. Allow vial to reach room temperature before opening.

GHK-Cu in Published Research

GHK-Cu is the copper(II) complex of the naturally occurring tripeptide glycyl-L-histidyl-L-lysine. GHK binds Cu(II) with high affinity, and the complex is one of the most studied copper peptides in biochemistry and cosmetic-science research.

Laboratory studies use GHK-Cu in fibroblast and keratinocyte cultures to examine collagen and glycosaminoglycan synthesis, extracellular-matrix remodeling and gene-expression profiles. It is also available as raw powder and in the GLOW and KLOW blends.

This summary describes published laboratory research only and makes no claim about effects in humans or animals.

Purity Testing & Certificate of Analysis

Each lot of GHK-Cu is analyzed by an independent laboratory, with identity and purity (or composition, for multi-component preparations) reported on a lot-specific Certificate of Analysis. View current results on our COA page.

Storage & Laboratory Handling

Store at −20 °C, sealed, dry and protected from light. Allow vial to reach room temperature before opening. Minimize freeze–thaw cycles and handle according to your institution’s chemical-hygiene procedures.

Frequently Asked Questions

Why is GHK-Cu blue?

The blue colour comes from the copper(II) ion chelated by the Gly-His-Lys tripeptide; it is normal for GHK-Cu powder and solutions.

Is GHK-Cu third-party tested?

Yes. Every lot of GHK-Cu is tested by an independent laboratory for identity and purity, and the batch Certificate of Analysis is published on our COA page.

Can I see the GHK-Cu Certificate of Analysis before ordering?

Yes. Lot-specific COAs are posted on our COA page so you can review analytical data before purchase.

What does Research Use Only (RUO) mean?

RUO products are supplied solely for laboratory and analytical research. They are not medicines, are not for human or veterinary use, and no dosing or administration information is provided.

How should GHK-Cu be stored?

Store at −20 °C, sealed, dry and protected from light. Allow vial to reach room temperature before opening.

Research Guides

Learn more: GHK-Cu research guide

Selected References

Peer-reviewed literature on GHK-Cu Copper Peptide, listed as scientific background for laboratory researchers. Citation does not imply endorsement by the authors or any use other than in-vitro research.

  1. Mehr A, et al. The copper(II)-binding tripeptide GHK, a valuable crystallization and phasing tag for macromolecular crystallography. Acta Crystallogr D Struct Biol. 2020;76(Pt 12):1222-1232. PubMed 33263328 · DOI
  2. Hureau C, et al. X-ray and solution structures of Cu(II) GHK and Cu(II) DAHK complexes: influence on their redox properties. Chemistry. 2011;17(36):10151-60. PubMed 21780203 · DOI

Related Research Compounds

Research Use Only

For laboratory research use only. This product is not a drug, food, cosmetic or dietary supplement, is not FDA-approved, and is not intended for human or veterinary use or for the diagnosis, treatment, cure, mitigation or prevention of any disease. No dosing, administration or therapeutic information is provided. Sold only to qualified researchers; the purchaser is responsible for safe handling and compliance with all applicable laws and institutional requirements.

Certificate of Analysis (COA)

Choose a report to see its lab results, purity and measured amount. Match the MG amount and lot number to your product.

GHK-Cu (Copper Peptide)

Reinstoff Labs — 50 MGRL-2026-000856 · Lot # US26GHK5001PASSLatestView details ⌄
Laboratory report · Reinstoff Labs

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Certificate of Analysis issued by Reinstoff Labs. Batch ID: US26GHK5001 · HPLC purity: 99.6% · Report code: RL-2026-000856

Reinstoff Labsreinstofflabs.de
REPORT NUMBERRL-2026-000856
SAMPLE

GHK-Cu (Copper Peptide)

CLEARED PEPTIDES · Lot US26GHK5001

PASS
99.6%PURITY BY HPLC
Labeled amount
50.0 mg
Measured amount
56.4 mg
Identity · LC-MS
Confirmed
Analysis completed
GHK-Cu (Copper Peptide)
SterilityNo growth✓ PASS
EndotoxinsWithin specification≤ 5.0 EU/mL✓ PASS
Fentanyl screeningNot detected✓ PASS

Findings relate to the tested sample and recorded method. See the full report.

Issued by Reinstoff Labs. For research use only.

Reinstoff Labs — 100 MGRL-2026-650304 · Lot # US26CU10001PASSView details ⌄
Laboratory report · Reinstoff Labs

Tap this certificate to view the full certificate.

Certificate of Analysis issued by Reinstoff Labs. Batch ID: US26CU10001 · HPLC purity: 99.5% · Report code: RL-2026-650304

Reinstoff Labsreinstofflabs.de
REPORT NUMBERRL-2026-650304
SAMPLE

GHK-Cu (Copper Peptide)

CLEARED PEPTIDES · Lot US26CU10001

PASS
99.5%PURITY BY HPLC
Labeled amount
100.0 mg
Measured amount
108.2 mg
Identity · LC-MS
Confirmed
Analysis completed
GHK-Cu (Copper Peptide)
SterilityNo growth✓ PASS
EndotoxinsWithin specification≤ 5.0 EU/mL✓ PASS
Fentanyl screeningNot detected✓ PASS

Findings relate to the tested sample and recorded method. See the full report.

Issued by Reinstoff Labs. For research use only.

Certificate of Analysis — 50mgLot # US26AU5002October 16, 2026 PASSView details

Certificate summary

GHK-Cu (Copper Peptide)

Certificate of Analysis

View the certificate for the reported test results.

Lot number
US26AU5002
Labeled amount
50mg

Read the full certificate for test methods, specifications and results.

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Certificate of Analysis — 100 MGLot # US26CU10002October 3, 2026 PASSView details

BTLabs

GHK-Cu (Copper Peptide) · COA261685-017

PASS
99.7%Purity by HPLC
Lot number
US26CU10002
Tested
September 30, 2026
Labeled amount
100 MG
Measured amount
96.5 MG

Read the full certificate for test methods, specifications and results.

Certificate preview
View the certificate

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