Skin & Cosmetic · Copper-binding tripeptide
GHK-Cu 50mg
GHK-Cu supplied as a lyophilised powder for reconstitution. Reference-grade purity, mass-spec confirmed identity, and a batch-linked Certificate of Analysis with every order.
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1 vial
Base
3+ vials
−10%
6+ vials
−18%
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CoA-match guarantee — every vial matches its batch Certificate of Analysis, or your money back.
About the compound
What is GHK-Cu?
GHK-Cu is a naturally occurring copper-binding tripeptide, glycyl-L-histidyl-L-lysine, complexed with a copper(II) ion. It is assigned CAS number 89030-95-5 and carries a molecular weight of 402.93. The peptide occurs endogenously in human plasma and other tissues, where its concentration is understood to decline with age. As a research reagent it is catalogued within the skin and cosmetic-science category and supplied for laboratory research use only.
Structurally, the histidine and lysine residues form a high-affinity site that coordinates copper, giving the molecule its characteristic blue tint in solution. This copper-carrier property is central to how the tripeptide is examined in biochemical work, since copper is a cofactor for numerous enzymes involved in extracellular matrix chemistry. Researchers study the complex as a model system for copper transport and delivery at the cellular level.
In the research literature GHK-Cu is investigated extensively in connection with collagen and tissue-remodelling pathways, and it is a long-standing subject of cosmetic-science studies. Work in cell-culture models has examined its association with the expression of extracellular matrix components and antioxidant-related genes. These investigations sit entirely within experimental settings and describe observations in laboratory systems rather than any application in people.
GHK-Cu UK stock is supplied by Sova as a lyophilised powder for controlled laboratory environments. Each batch is characterised by reverse-phase HPLC and electrospray-ionisation mass spectrometry, with results recorded on a batch-linked Certificate of Analysis. Sourced and held in the United Kingdom, it is intended to support reproducible bench work by researchers and institutions. This material is sold strictly for laboratory research use only.
Specification
Read the vial.
- Compound
- GHK-Cu
- CAS number
- 89030-95-5
- Molecular weight
- 402.93 g/mol
- Purity (HPLC)
- 99.5%
- Identity
- Confirmed by mass spectrometry
- Form
- Lyophilised powder, sterile-filtered
- Storage
- Store lyophilised at ≤ −20 °C, protected from light. Reconstituted: 2–8 °C, use within 28 days.
- Tested by
- Independent UK laboratory
- Batch
- SVA-0371
Reconstitution guidance
Handled like a lab reagent.
Reconstitute with bacteriostatic water. Draw slowly against the vial wall — do not agitate. Swirl gently until fully dissolved. Store reconstituted vials at 2–8 °C and use within 28 days. Full protocol on the Certificate of Analysis.
Example dilutions · 50 mg vial
| BAC water | Concentration | Per 0.05 ml |
|---|---|---|
| 1.0 ml | 50 mg / ml | 2.50 mg |
| 2.0 ml | 25 mg / ml | 1.25 mg |
| 3.0 ml | 16.67 mg / ml | 0.83 mg |
| 5.0 ml | 10 mg / ml | 0.50 mg |
Concentration reference only — not a dosing schedule.
FAQ
GHK-Cu, answered.
What is GHK-Cu?
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GHK-Cu is a naturally occurring copper-binding tripeptide, glycyl-L-histidyl-L-lysine, bound to a copper(II) ion (CAS 89030-95-5, molecular weight 402.93). It is found endogenously in human tissue and is widely used as a reference compound in biochemical and cosmetic-science research.
Is GHK-Cu legal to buy in the UK?
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In the UK, GHK-Cu is supplied as a research chemical for laboratory research use only. It is not authorised as a medicine or cosmetic product for human use, and it must not be marketed or used for such purposes. Sold on that basis, it can be purchased by researchers.
What is GHK-Cu studied for?
+
GHK-Cu is investigated in research on collagen, extracellular matrix chemistry and tissue remodelling, and it is a long-standing subject of cosmetic-science literature. Cell-culture studies have examined its association with matrix-related and antioxidant genes. All findings are described within laboratory systems only.
How is Sova's GHK-Cu verified?
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Each batch of Sova's GHK-Cu is analysed by reverse-phase HPLC to assess identity and composition and by electrospray-ionisation mass spectrometry to confirm molecular mass. The results are recorded on a batch-linked Certificate of Analysis supplied with the material.
How should GHK-Cu be stored?
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GHK-Cu is best kept as a lyophilised powder in a sealed container, protected from light and moisture, in a cold environment such as a freezer for longer-term storage. Once reconstituted, solutions are typically held refrigerated and used within a short period.
Why does GHK-Cu appear blue in solution?
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The blue tint comes from the copper(II) ion coordinated by the histidine and lysine residues of the peptide. This copper-peptide complex absorbs light in a way that gives prepared solutions their colour and underlies much of the molecule's distinctive chemistry.
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