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TB-500 calculator.
Reconstituting TB-500? Enter the mg in the vial, the bacteriostatic water you add, and your target dose. You get the exact concentration, the volume to draw in mL, and the units on a U-100 syringe. No rounding, no account, and the full math is shown every time.
Units shown for a U-100 insulin syringe (1 mL = 100 units). No rounding · the full math is above.
How the math works
Three steps, no hand-waving.
Reconstitution is simple arithmetic. The only thing that matters is that it is exact, and that you can see every step.
Vial mg ÷ BAC water mL = mg/mL. A 5 mg vial in 2.5 mL of water is 2.0000 mg/mL.
Target dose ÷ concentration = mL to draw. 2.5 mg ÷ 2.0000 mg/mL = 1.2500 mL.
Draw mL × 100 = units on a U-100 insulin syringe. 1.2500 mL = 125 units.
Background
What TB-500 reconstitution is
TB-500 is a research peptide supplied as a lyophilized powder that is reconstituted with bacteriostatic water before a dose can be drawn. Concentration is the mg in the vial divided by the mL of water you add. This calculator runs that arithmetic exactly and shows your draw volume and units, with no hidden rounding.
- Reconstitution built into the dose logger, not a separate tool
- 28-day BAC water expiry countdown per vial
- Doses remaining and refill warnings, all derived
- Local-first · no account, data stays on your device
FAQ
TB-500 reconstitution questions, answered.
How do you calculate a TB-500 dose?
Divide the mg of TB-500 in the vial by the mL of bacteriostatic water you add for the concentration in mg/mL. Then divide your target dose (in mg) by that concentration to get the draw volume in mL. Multiply by 100 for units on a U-100 insulin syringe.
How much BAC water for TB-500?
There is no single correct amount. More water lowers the concentration and gives a larger, easier-to-measure draw; less gives a higher concentration and a smaller draw. Enter the amount you plan to add and the calculator returns your exact numbers.
How many units is a TB-500 dose?
It depends on the concentration. Enter your vial mg, BAC water mL, and target dose above and the calculator returns the exact units on a U-100 syringe, updating live.
How is TB-500 different from BPC-157?
They are different molecules often discussed together for recovery. TB-500 is a synthetic peptide related to thymosin beta-4; BPC-157 is a separate gastric-derived peptide. The reconstitution arithmetic is identical for both: vial mg, mL of water, target dose.
Is TB-500 FDA approved?
No. TB-500, related to thymosin beta-4, is a research peptide and is not approved by the FDA for any use. This tool performs arithmetic only and is not a recommendation to use it.
Is TB-500 banned in sports?
Yes. The World Anti-Doping Agency Prohibited List bans TB-500 at all times for tested athletes. Anti-doping rules apply strict liability regardless of how a product was labeled.
How should reconstituted TB-500 be stored?
Follow the storage guidance for your specific product. Reconstituted peptide vials are generally refrigerated and used within a limited window. Regimio tracks a per-vial expiry countdown so you are not guessing how many days are left.
Is this medical advice?
No. This calculator performs arithmetic on the values you enter. It does not recommend a dose, schedule, or source. Confirm anything you do with a qualified provider.
- 1TB-500 (thymosin beta-4) compound summary. PubChem, US National Library of Medicine
- 2The Prohibited List. World Anti-Doping Agency
This tool performs reconstitution arithmetic only. It is not medical advice and does not recommend any compound, dose, schedule, or source. Always follow guidance from a qualified provider. See our medical disclaimer.