| Test | Method | Limit | Result |
|---|---|---|---|
| Purity | HPLC | ≥ 99.0% | 99.78% |
| Identity | Mass spectrometry | 403.9 ± 1.0 Da | 404.0 Da |
| Net content | Quantitative HPLC | ≥ 50 mg | 50.62 mg |
| Endotoxin | LAL assay | ≤ 0.5 EU/mg | 0.05 EU/mg |
| Sterility | Membrane filtration | No growth | No growth |
| Heavy metals | ICP-MS | ≤ 10 ppm total | 1.1 ppm |
| Moisture | Karl Fischer | ≤ 8.0% | 2.6% |
Copper-binding tripeptide
C14H24CuN6O4
403.9 Da · 3 residues
Copper peptides · Copper-binding tripeptide
50 mg to 100 mg · 3 residues · 403.9 Da
Size$0.80/mg
Quantity10+ of one compound: 40% off
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For in-vitro research use only. Not for human or animal use.
Copper peptides
GLOW 70 mgCopper peptides
GLOW+ 120 mgCopper peptides
GHK-Cu / KPV 50 / 20 mgCopper peptides
AHK-Cu 50 mgCopper peptides
GHK-Cu / BPC-157 50 / 10 mgTissue + immune
BPC-157 10 mgTissue + immune
TB-500 10 mgNeural
Semax 10 mgMetabolic
GLP-3 RT 5 mgMetabolic
GLP-2 TZ 10 mgCellular
MOTS-c 10 mgCellular
SS-31 10 mg01Verified test results
GHK-Cu lot SA-GHK-2611 was tested Oct 12, 2026 at an independent laboratory before it shipped. Every value is printed against its limit, so a pass means something.
Certificate of analysis
99.78%
Purity by HPLC
Profile drawn from the reported purity
Purity by HPLC, identity by mass spectrometry, net content by quantitative HPLC, endotoxin by LAL, sterility by membrane filtration, heavy metals by ICP-MS and moisture by Karl Fischer. Report SA-GHK-2611-01, Oct 12, 2026. Open the lot record.
Open any lot's certificate. Your order ships from the current released lot, and its QR code opens this record.
99.78%
HPLC purity
Tested Oct 12, 2026 · 7/7 assays · sample
99.71%
HPLC purity
Tested Sep 11, 2026 · 7/7 assays · sample
99.66%
HPLC purity
Tested Aug 12, 2026 · 7/7 assays · sample
02Verify your vial
Every vial label carries a QR code. Point your phone camera at it.
The code opens that lot's certificate with every assay value. No phone? Type the lot from your packing slip on Verify a lot.
Each signed certificate links to the lab's own verification page, so the report can be confirmed independently of us.
03Analytical identity
Studied in collagen-synthesis and extracellular-matrix models in vitro.
| Compound | Copper-binding tripeptide |
|---|---|
| Formula | C14H24CuN6O4 |
| Molecular weight | 403.9 Da |
| Residues | 3 |
| CAS | 49557-75-7 |
| Form | Lyophilised powder, 50 mg, 100 mg |
| Storage | Sealed at -20 °C, away from light and moisture |
Sequence
Side-chain composition
Every heavy atom is placed from the sequence with ideal bond lengths and angles, so the connectivity is exact. The pose is idealised (a compact Cu(II) chelate) and is not a measured conformation. Identity for each lot is confirmed on its certificate.
Structure viewer04In the lab
GHK-Cu is a copper-binding tripeptide first identified in plasma; copper itself carries part of its fibroblast activity. Lab studies report more collagen and MMP-2 from skin fibroblasts and lower NF-kB and TGF-beta1/Smad signaling in lung injury models.
Compound
GHK-CuGly-His-Lys tripeptide bound to copper(II)Dermal fibroblasts
Endpoint studied
More MMP-2, its mRNA, TIMP-1 and TIMP-2; copper ions alone matched the MMP-2 rise, GHK alone did not.
Simeon 2000 · PMID 11045606Macrophages
Endpoint studied
Less ROS, more SOD activity and lower TNF-alpha and IL-6, with NF-kB p65 and p38 MAPK signaling suppressed.
Park 2016 · PMID 27517151Lung tissue
Endpoint studied
Less collagen, TNF-alpha and IL-6 in a fibrosis model, with TGF-beta1 and Smad2/3 phosphorylation suppressed.
Ma 2020 · PMID 31809714Pathways as reported in the cited laboratory studies. For in-vitro research use only.
05Research history
5 milestones, each linked to its PubMed record
Experientia
The growth-modulating tripeptide found in serum is identified as glycyl-histidyl-lysine.
PubMed · PMID 858356The Biochemical Journal
The tripeptide binds copper(II) strongly enough to compete with albumin, holding about 42% of it at equal concentrations.
PubMed · PMID 7340824FEBS Letters
GHK-Cu raises collagen synthesis by fibroblasts in culture from picomolar levels, without changing cell number.
PubMed · PMID 3169264Life Sciences
GHK-Cu raises MMP-2 and its mRNA, plus TIMP-1 and TIMP-2, in dermal fibroblast cultures.
PubMed · PMID 11045606International Journal of Molecular Sciences
A review links GHK to collagen, elastin and glycosaminoglycan synthesis, vessel and nerve outgrowth, and gene expression data.
PubMed · PMID 29986520 LatestLaboratory research only, cited for research context. Not a claim about use in people.
06Questions
About GHK-Cu, its certificate and your order.
Email [email protected], Monday to Friday. A person replies within one business day.
The current released lot, SA-GHK-2611. Scan the QR code on the vial label to open its certificate. The lot number is also on your packing slip, and the full certificate is here.
Every certificate is issued by an independent laboratory. Each lot has its own public record page with every assay value, and a link to verify the report on the lab's own site once the signed PDF is posted.
Vials are filled slightly over the labelled mass so that every vial meets it. Net content is measured on each lot and published as a number, not a pass.
Email [email protected] within 7 days with your order number and a photo and we will replace it.
Orders by 2 PM ET on a weekday ship the same day, with tracking emailed when the label prints.
No. It is sold strictly for in-vitro laboratory research and is not for human or animal use of any kind.
07Complete the box
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