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GHK-Cu is a naturally occurring copper-binding tripeptide (glycyl-L-histidyl-L-lysine) studied extensively for extracellular matrix remodelling, collagen synthesis and antioxidant signalling.
For topical research solutions, GHK-Cu is typically prepared at 0.05%–2% w/v in sterile water or a buffered vehicle. The characteristic deep blue colour indicates intact copper coordination; a green or brown shift suggests degradation or pH drift.
Published studies describe GHK-Cu stimulating collagen I and III synthesis, glycosaminoglycan production and metalloproteinase/TIMP balance in dermal fibroblast models.
Lyophilized GHK-Cu powder can be prepared as either a topical research solution or a reconstituted vial for laboratory work. Handling, sterility and solvent choice differ; both are documented on the certificate of analysis.
Convert vial strength and bacteriostatic water volume into exact insulin-syringe unit marks.
Peptide reconstitution calculator
Concentration
5 mg/mL
Draw volume
0.05 mL
Insulin syringe
5 units (IU)
U-100 insulin syringe (100 units = 1 mL)
10 mg + 2 mL = 5 mg/mL. A 250 mcg dose = 5 units on a U-100 syringe (40 doses per vial).
For laboratory and research use only. Not for human or veterinary use.
Need solvent? Buy bacteriostatic water (10mL / 30mL)
Most published cosmetic-science work uses 0.05% to 2% w/v. A 100mg vial dissolved in 10mL of vehicle produces a 1% solution.
The blue colour comes from the copper(II) ion coordinated to the tripeptide. Loss of that colour indicates the complex has degraded.
