This GHK-Cu calculator shows how many units to draw after reconstituting a GHK-Cu vial. It includes common vial sizes, half-life, and storage notes.
GHK-Cu at a glance
| Class | Copper tripeptide (glycyl-L-histidyl-L-lysine) |
| Status | Research compound; used topically in cosmetics |
| Typical vial sizes | 50 mg, 100 mg |
| Half-life | Not established; short in plasma |
| Molecular weight | ≈403.9 g/mol (copper complex) |
| Storage | Lyophilized: freeze at −20 °C for long-term storage or refrigerate at 2–8 °C short term. Reconstituted: refrigerate at 2–8 °C, protect from light, do not freeze. Solutions are blue; discard if color changes or precipitate forms. |
How to use the GHK-Cu Calculator
- Enter the vial size, or tap a preset.
- Enter the bac water added, or tap a preset.
- Enter the desired dose and choose mcg or mg.
- Choose the syringe type.
- Read the result card. It updates as you type, and you can copy or share it.
About this calculator
GHK-Cu is a copper tripeptide (glycyl-L-histidyl-L-lysine). Status: Research compound; used topically in cosmetics. The presets above reflect the vial sizes and water volumes most often used for GHK-Cu.
The math is the same as the general reconstitution calculator. Only the presets and reference data change.
Frequently asked questions
What vial sizes does GHK-Cu come in?
Commonly 50 mg, 100 mg. Always use the amount printed on your vial.
How should GHK-Cu be stored?
Lyophilized: freeze at −20 °C for long-term storage or refrigerate at 2–8 °C short term. Reconstituted: refrigerate at 2–8 °C, protect from light, do not freeze. Solutions are blue; discard if color changes or precipitate forms.
What is the half-life of GHK-Cu?
Not established; short in plasma.
Sources
- Pickart L, Margolina A. Regenerative and protective actions of the GHK-Cu peptide in the light of the new gene data. Int J Mol Sci. 2018;19(7):1987. PubMed.
- General Chapter <797> Pharmaceutical Compounding: Sterile Preparations. U.S. Pharmacopeia.
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Medical disclaimer. This calculator is for educational purposes only and is not medical advice. Results are mathematical estimates based on the values you enter. Many peptides listed here are not approved by the FDA for human use. Confirm every dose with a licensed healthcare provider or your approved study protocol, and follow the product label.
