- How do I reconstitute a peptide?
- Draw bacteriostatic water into a syringe, add it slowly down the inside wall of the vial, and let the powder dissolve on its own without shaking. The amount of water you add sets the concentration (mcg/mL). Enter your vial size and water volume above to see the exact concentration and the mark to draw on a U-100 insulin syringe.
- How do I read units on a U-100 insulin syringe?
- A U-100 insulin syringe holds 100 units (IU) per millilitre, so each 1 IU tick equals 0.01 mL. A 10 IU mark is therefore 0.10 mL — it is a volume mark, not a measure of milligrams or micrograms. The calculator converts your dose into the exact unit tick to fill to.
- What is the difference between mg, mcg, and IU?
- Milligrams (mg) and micrograms (mcg) measure the mass of peptide — 1 mg = 1,000 mcg. IU on an insulin syringe measures the volume you draw (1 IU = 0.01 mL). Vials are usually labeled in mg, doses are usually specified in mcg, and the syringe is read in IU, which is why a calculator is helpful.
- How much bacteriostatic water should I add?
- There is no single correct volume — more water gives a larger, easier-to-read draw at the same dose, while less water concentrates it. The calculator suggests a bacteriostatic-water volume that lands your dose on a clean, round mark on a U-100 syringe. Follow any specific reconstitution instructions from your clinician or pharmacy.
- How should reconstituted peptides be stored?
- Reconstituted peptides are generally kept refrigerated (about 2–8 °C) and protected from light, while unmixed lyophilized powder is usually kept frozen. Always follow the storage and beyond-use guidance provided with your specific product.
- Does this calculator recommend a dose?
- No. It is a math tool that converts your own inputs — vial size, bacteriostatic water, and the dose you enter — into a draw volume and syringe mark. It never recommends a dose. It is educational, not medical advice; always consult a licensed clinician.