TB-500 calculator
TB-500 Reconstitution Calculator
Draw to
On a U-100 insulin syringe. 100 units = 1 mL.
Common TB-500 vial sizes
TB-500 is commonly supplied as 2, 5, 10 mg vials. A common starting point is 10 mg reconstituted with 2 mL of bacteriostatic water, which gives 5 mg/mL.
How to reconstitute TB-500
- Add 2 mL of bacteriostatic water (or your chosen volume) slowly down the side of the vial.
- Swirl gently until the solution is clear. Do not shake.
- Enter your vial size, water volume, and dose in the calculator above.
- Draw to the exact unit mark it highlights on the syringe.
Example dose in units
At 5 mg/mL, a 2 mg dose of TB-500 is about 40 units on a U-100 insulin syringe. Change any value above to match your own vial.
Storage and handling
TB-500 has an approximate half-life of 48 hours. Once reconstituted, peptides are generally kept refrigerated and protected from light, and are often used within about 30 days. See our storage guide for general handling information.
Frequently asked questions
- How many units is a 2.5 mg TB-500 dose?
- At 5 mg/mL (10 mg in 2 mL), 2.5 mg is 0.5 mL, which is 50 units on a U-100 syringe. Enter your own values above to check.
Related calculators and guides
Keep this calculation in your pocket
Stackr saves every vial you reconstitute, tracks doses remaining, and reminds you to reorder before you run out. The reference app for people who take their protocol seriously.
Educational tool only, not medical advice. Peptides are research chemicals, not for human consumption. Full disclaimer.