Copper tripeptide · Glycyl-L-histidyl-L-lysine
A tripeptide-copper complex characterised in regenerative-research literature for collagen modulation and dermal-research models.
| Compound | GHK-Cu |
| Research category | Longevity Research |
| Available sizes | 50mg, 100mg |
| Pricing | From £45 |
| Format | Lyophilised powder in sealed vial & pre-reconstituted pen |
| Purity | >99% by HPLC (Janoshik Analytical, batch-verified) |
| Intended use | In-vitro laboratory research only. Not for human consumption. |
Reference data drawn from public databases (PubChem, UniProt) and peer-reviewed literature. For research and laboratory characterisation only.
| Compound class | Tripeptide-copper complex (Gly-His-Lys + Cu²⁺) |
| Molecular formula | C14H24CuN6O4 (copper complex) |
| Molecular weight | 401.84 g/mol (Cu-complex); 340.38 g/mol free peptide |
| CAS Registry Number | 89030-95-5 (Cu complex); 49557-75-7 (free peptide) |
| PubChem CID | 73587 |
| Number of residues | 3 |
| Amino acid sequence | Gly-His-Lys (GHK) |
| Receptor / mechanism | Copper-binding tripeptide; modulates collagen synthesis pathways in literature. |
| Reported half-life | Reported short serum half-life; tissue binding documented in literature. |
| Solubility | Lyophilised powder reconstitutes in bacteriostatic water for laboratory use. |
| Storage (lyophilised) | Stable at 2–8 °C lyophilised for 24+ months. Light-sensitive (amber vial). |
| Storage (reconstituted) | Reconstituted: store at 2–8 °C, use within 30 days. Protect from light. |
| Clinical / regulatory status | Cosmeceutical research; not a regulated drug. |
GHK-Cu is a naturally occurring copper-binding tripeptide (glycyl-L-histidyl-L-lysine) complexed with copper(II). Characterised in the literature for its high affinity for Cu(II) and its effects in cultured fibroblast models. Supplied as lyophilised powder for in-vitro research use only.
The above describes how this compound is characterised in the published peer-reviewed literature. It is not a claim about effects in humans.
GHK-Cu is supplied as a lyophilised (freeze-dried) powder in a sealed glass vial. For laboratory reconstitution, add the desired volume of diluent (typically bacteriostatic water) slowly down the side wall of the vial. Swirl gently until fully dissolved - do not vortex or shake. Store reconstituted solutions at 2–8 °C and use within 4–6 weeks.
Use our Reconstitution Volume Calculator to compute the resulting mg/ml concentration.
| State | Temperature | Shelf life |
|---|---|---|
| Lyophilised | 2–8 °C or −20 °C | Up to 24 months |
| Reconstituted | 2–8 °C | 4–6 weeks typical |
Every batch of GHK-Cu we supply is independently HPLC-verified by Janoshik Analytical. Where a Janoshik report has been issued for the current batch it is supplied with the order and carries a unique verification key that can be authenticated against Janoshik's records. Reported purity is consistently above 99%.
Latest Janoshik report for GHK-Cu 70mg · task #193651 · analysed 22 Jun 2026
This report is for the batch, not the size. Janoshik’s HPLC test measures what the compound is and how pure it is, and its quantification confirms the amount in the vial tested. Every size of GHK-Cu is filled from the same tested batch, so this 70mg report covers 100mg as well. The report supplied with your order carries a verification key you can check on Janoshik’s own site.
| Purity | 99.707% |
| Measured content | 71.54 mg |
| Content (GHK / Cu) | 71.54 mg (59.25 mg GHK) [12.29 mg Cu] |
| Batch | 77GK265 |
| Verification key | LKSBIHZ5UQTT |
Researchers working with GHK-Cu often work alongside the following compounds in the preclinical literature:
References are independent peer-reviewed sources. Lab77 Peptides is not affiliated with these publications.