GHK-Cu100 mg
Copper-bound tripeptide.
For laboratory and in-vitro research use only. Not a food, drug, supplement, or cosmetic, and not for human or veterinary use.
Identity & analytics
Every lot ships with a Certificate of Analysis bearing HPLC purity, synthesis date, and retention time.
- CAS number
- 49557-75-7
- Molecular weight
- 402.92 g/mol
- Amino-acid chain
- 3 residues
- HPLC purity
- 99.0%
- Category
- Dermal & copper
- Format
- Lyophilized powder
Verified three ways
- 01
In-house HPLC
Reverse-phase chromatography on every batch — retention time, peak area, and impurity profile.
- 02
Independent confirmation
Re-run by an accredited third-party laboratory in Houston. Identity confirmed by mass-spectrometry.
- 03
Public COA index
Every peptide's Certificate of Analysis is published to veritaspeptideslab.com/lab-reports the same day the order ships.
Certificate of Analysis
GHK-Cu
- HPLC purity
- 99.0%
- Method
- RP-HPLC, 214 nm
- Identity
- ESI-MS confirmed
- Net peptide
- 84.1%
- Counter-ion
- Cu(II) complex
- Water
- 3.8%
- Endotoxin
- <0.5 EU/mg
- Storage
- -20°C, desiccated
- Synthesis date
- Aug 05, 2026
- Mass-spec
- Confirmed
GHK-Cu questions, answered
- 01
What is GHK-Cu?
GHK-Cu is the copper(II) complex of the naturally occurring tripeptide glycyl-L-histidyl-L-lysine (CAS 49557-75-7), used widely in dermal, cosmetic-science, and tissue-model research. As with all Veritas compounds, it is supplied for laboratory research use only.
Explore related compounds in the dermal & copper category.
- 02
Why is reconstituted GHK-Cu blue?
The distinctive blue color comes from the copper(II) ion coordinated by the peptide — it is the expected appearance of an intact GHK-Cu complex, not a sign of contamination or degradation. A colorless GHK-Cu solution would be the anomaly worth investigating.
- 03
How should GHK-Cu be stored?
Keep the lyophilized powder tightly sealed, dry, and away from light; refrigeration is recommended for working stock, and reconstituted solutions belong in the refrigerator. Full handling notes live on the stability data page, or find further information in our Blog Page
- 04
How can I confirm the purity of a GHK-Cu lot?
Recent GHK-Cu lots have assayed at ~99.0% by reverse-phase HPLC, with identity confirmed by an independent laboratory. Enter your vial's batch number in the lot lookup tool or browse the full COA index.