GHK-Cu in Research Laboratories: Handling and Reconstitution

GHK-Cu (glycyl-L-histidyl-L-lysine copper complex) is one of the most frequently ordered research peptides in dermatology and cell biology laboratories. Its copper-coordinated structure influences solubility and handling compared with simpler linear sequences — making careful reconstitution and batch documentation especially important.

Common research formats

GHK-Cu is often supplied lyophilised at 50 mg or 100 mg per vial, though smaller sizes are available. Higher masses require proportionally more diluent to reach workable concentrations. Reconstituting 50 mg with 5 mL bacteriostatic water yields 10 mg/mL — a practical starting point for many assay designs.

Reconstitution tips

• Add diluent slowly along the vial wall; avoid foaming.
• Gently swirl until fully dissolved — do not assume instant clarity.
• Use bacteriostatic water unless your SOP specifies an alternative.
• Plan draw volumes with the peptide calculator before opening the vial.
• Record batch number and reconstitution date in your lab notebook.

Storage and copper stability

Copper peptides can be sensitive to repeated freeze-thaw cycles and prolonged light exposure. Store lyophilised material at −20 °C for extended periods. After reconstitution, refrigerate at 2–8 °C and aliquot if the vial will be accessed multiple times over several weeks.

EU fulfilment advantage

European laboratories sourcing GHK-Cu from Peptides EU receive intra-EU dispatch — no customs clearance delays and no import VAT collected at the door. Combined with batch-specific COAs and discreet tracked delivery from €7.99, procurement stays predictable for timed research programmes.