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GHK-Cu Firmer skin, stronger hair

GHK-Cu — the copper peptide behind collagen.

  • Skin firmness and texture
  • Studied in collagen synthesis and wound repair
  • Also used for hair density
  • Ashley, a PeptoClinic customer, with the order they received
  • Brandon, a PeptoClinic customer, with the order they received
  • Emily, a PeptoClinic customer, with the order they received
  • Jessica, a PeptoClinic customer, with the order they received

Customers

$105 $125

50 mg Vial (Lyophilized)

  • Physician consult & prescription review Free
  • Bacteriostatic water · 10 ml Free

Secure checkout

You go straight to payment with this product already in the order. Before paying you can add others — it all ships together.

GHK-Cu (Copper Peptide) 50 mg Normal vial — lyophilised peptide, ≥99% HPLC

What the research says

GHK-Cu is the copper(II) complex of the naturally occurring tripeptide glycyl-L-histidyl-L-lysine. Research literature examines its role in extracellular matrix remodelling, collagen expression assays and antioxidant response pathways in dermal model systems. GHK-Cu is used in cosmetic skin products; in injectable form it has not received FDA approval and is on the FDA's list of bulk substances that compounding pharmacies may not use.

Published studies

Each link opens the original record on PubMed or the public trial registry.

Purity
≥99% HPLC
Presentation
50 mg Vial (Lyophilized)
Research area
Tissue & repair
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Made for everyday use

  • Skin firmness and texture

  • Studied in collagen synthesis and wound repair

  • Also used for hair density

  • Packaging

    Discreet boxes with the lyophilised vial sealed inside. As a powder it travels stable at room temperature, so no cold chain is needed.

Ready to start?

A physician reviews your case before anything ships.

  • Secure checkout
  • Physician-reviewed
  • ≥99% HPLC
  • Packaging

Also known as: GHK-Cu, copper peptide, copper tripeptide-1, Gly-His-Lys copper

Tissue & repair ≥99% HPLC Sizes available: 50 mg Normal – 50 mg Plus Physician-reviewed

Documented research areas

  • Matrix remodelling
  • Collagen assays
  • Antioxidant pathways

GHK-Cu (Copper Peptide) specifications

GHK-Cu (Copper Peptide) — supply specification. Supplied after a physician reviews your consultation.
Property Specification
Classification Gly-His-Lys tripeptide copper(II) complex
Also known as GHK-Cu, copper peptide, copper tripeptide-1, Gly-His-Lys copper
Purity ≥99% HPLC
CAS number 89030-95-5
Molecular formula C14H23CuN6O4+
Molecular weight 402.92 g/mol
Vial sizes available 50 mg Normal, 50 mg Plus
Intended use Supplied after physician review — not an approved medicine
Physical form Lyophilised powder
Storage -20 °C, protected from light
Reconstitution Bacteriostatic water · 10 ml bottle, included at no charge (one per vial)
Testing HPLC + mass spectrometry, per batch
Dispatch Sealed box, tracked, from Argentina or the United States — no cold chain needed

Published lab reports

The third-party analysis behind this compound, published as the laboratory issued it — their letterhead, their report number, their key.

GHK-CU

Report #2607150690
Purity
99.83%
Content found
107.74 mg

against a 100 mg label

Laboratory
Freedom Diagnostics

Jul 18, 2026

Certificate of analysis for GHK-CU, issued by Freedom Diagnostics Open the full certificate Verify at the lab

Checked with this key on Freedom Diagnostics's own verification page: JAGB2607150690

Open Freedom Diagnostics's verification page

GHK-Cu

Report #2606110709
Purity
99.93%
Content found
50.78 mg

against a 50 mg label

Laboratory
Freedom Diagnostics

Jun 15, 2026

Certificate of analysis for GHK-Cu, issued by Freedom Diagnostics Open the full certificate Verify at the lab

Checked with this key on Freedom Diagnostics's own verification page: JAGB2606110709

Open Freedom Diagnostics's verification page

Each report covers the batch submitted for it and no other. It is evidence about that material rather than a guarantee about every vial ever shipped, which is why these are dated, numbered and published one at a time instead of summarised into a badge.

Take the certificates with you

Each report as a PDF, the whole page exactly as the laboratory issued it. For a purchasing file, a colleague, or a batch record.

  • GHK-CU 99.83%

    Report #2607150690 · Freedom Diagnostics · PDF

    Download PDF
  • GHK-Cu 99.93%

    Report #2606110709 · Freedom Diagnostics · PDF

    Download PDF

Certificate of analysis

The CoA for the specific batch you would receive is reviewed during your consultation and ships with the material.

Request this batch CoA

Frequently asked questions

How do I know a lot is what it claims to be?

From that lot's certificate of analysis, not from what the supplier asserts. The certificate names the laboratory that took the measurement, the date, the task number, the method and the purity found. PeptoClinic publishes the full reports uncropped, exactly as the laboratory printed them.

What is a certificate of analysis and how do you read one?

It is the report an analytical laboratory issues on a specific sample. Four things are worth checking: which compound it claims to have measured, by what method (HPLC for purity, mass spectrometry for identity), what figure it found, and whether the task number can be verified against the laboratory. A certificate with no verifiable task number is a picture.

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Supplied after physician review — not an approved medicine