GHK-Cu Reconstitution Calculator
GHK-Cu is a copper-binding tripeptide studied in skin and longevity research. It ships lyophilized in larger vials (50–100 mg) and is reconstituted with bacteriostatic water. The reconstituted solution is characteristically blue; loss of color is a degradation signal.
For laboratory research use only.
Peptide Reconstitution Calculator
Enter your vial size and bacteriostatic water volume. The calculator outputs the resulting concentration per mL and per insulin syringe unit. For procedural reference only.
Reading the result: If you have a 5mg vial reconstituted with 2mL of BAC water, your concentration is 2,500 mcg/mL. On a U-100 insulin syringe, that's 25 mcg per IU mark.
For laboratory research use only. This calculator is a procedural reference for concentration math. It does not constitute dosing advice. Researchers should consult published literature and qualified expertise for their research protocols.
GHK-Cu concentration reference
Pre-computed concentrations for common GHK-Cu vial sizes (50 mg, 100 mg) across 1–3 mL of bacteriostatic water. All values assume a U-100 insulin syringe.
| Vial | BAC water | Concentration | Per IU (U-100) |
|---|---|---|---|
| 50 mg | 1 mL | 50,000 mcg/mL | 500 mcg |
| 50 mg | 2 mL | 25,000 mcg/mL | 250 mcg |
| 50 mg | 3 mL | 16,667 mcg/mL | 166.7 mcg |
| 100 mg | 1 mL | 100,000 mcg/mL | 1,000 mcg |
| 100 mg | 2 mL | 50,000 mcg/mL | 500 mcg |
| 100 mg | 3 mL | 33,333 mcg/mL | 333.3 mcg |
GHK-Cu research reference
- Dosing range: 1–2 mg per dose in published research design (research range)
- Administration: Subcutaneous (research); also studied topically
- Storage: Copper coordination is shock-sensitive. Refrigerate; the solution should retain its blue color — discoloration signals degradation.
Ranges summarized from published research literature. Not medical or dosing advice.GHK-Cu and all compounds referenced are for laboratory research use only — not for human consumption.
How the math works
Concentration (mcg/mL) = vial mass (mg) × 1000 ÷ bacteriostatic water volume (mL). For a 50 mg GHK-Cu vial reconstituted with 3 mL, that is 16,666.667 mcg/mL. On a U-100 insulin syringe (100 IU marks per mL), each IU mark holds 166.7 mcg.
New to reconstitution? Read our complete reconstitution guide and what bacteriostatic water is. For GHK-Cu specifically, see our GHK-Cu research guide.
Before you reconstitute, verify your vial against its GHK-Cu Certificate of Analysis. Sourcing a fresh vial? See where to buy GHK-Cu — what to check before ordering and how the tested vendors compared.
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