TB-500 Reconstitution Calculator

Use this free TB-500 calculator after you mix your vial: see how strong your solution is, switch your dosage between mcg and mg if that’s easier to think in, and get the U-100 insulin syringe reading (units and mL) so you know how far to pull the plunger—built for standard U-100 barrels where 100 units = 1 mL.

TB-500 Calculator

What is the total volume of your syringe?
Assumes U-100 markings (100 units = 1.0 mL). Math tool only — not medical advice.
Select peptide vial amount
How much bacteriostatic water are you adding?
Desired amount per draw
Results
To have a dose of — pull the syringe to —
Concentration
— —
Per Unit (U-100)
— mcg/unit
Draw
— units (— mL)
Syringe Max
— units
This calculator performs unit conversion math only and does not provide medical guidance.

What is TB-500?

TB-500 is a synthetic peptide people often read about in the same conversation as Thymosin Beta-4, especially around recovery after hard training, soft-tissue wear-and-tear, and injury-repair topics in research and enthusiast communities. This page focuses on the practical part: reconstituting TB-500 and reading a U-100 insulin syringe so your measurements match what you mixed.

TB-500 is usually sold as a lyophilized (freeze-dried) powder in a small vial. Before you can draw an accurate amount, it has to be reconstituted with bacteriostatic water (or another appropriate diluent per your sourcing instructions), then measured using a standard insulin-style syringe.

After mixing, the part that trips people up is converting a TB-500 dosage written in mg or mcg into the correct number of U-100 insulin syringe units. That depends on:

  • How much TB-500 is in the vial (the mg on the label)
  • How much bacteriostatic water you added
  • The amount you want per injection

The TB-500 dosage calculator on this page walks through those inputs so you can see your mixture’s strength, how much peptide each syringe “unit” represents on a U-100 scale, and exactly how many units and mL to pull.

Disclaimer: This page is for general education and unit conversion only. It does not tell you what to take, diagnose anything, or replace advice from a qualified medical professional.

How to Use the TB-500 Calculator

Use this TB-500 calculator after you mix your vial: it figures out how strong your solution is, then turns your chosen dosage (mg or mcg) into the right number of U-100 insulin syringe units to pull—plus the matching mL so you’re not guessing at the barrel.

Step 1: Choose Your Syringe Size

Pick the U-100 insulin syringe you’re using. On U-100, 100 units = 1.0 mL, so the “units” line up with a predictable liquid volume.

Step 2: Select the Vial Amount

Choose the TB-500 amount on your label—commonly 2 mg, 5 mg, or 10 mg—or tap Other if your vial is different.

Step 3: Enter Water Added

Enter how much bacteriostatic water you added (in mL). That’s what sets your final concentration after the powder is fully mixed.

Step 4: Choose Your Dose

Set your target amount in mg or mcg. You’ll see concentration, how much TB-500 each insulin “unit” represents on a U-100 scale, and the exact draw in units and mL.

Tip: Less bacteriostatic water makes a stronger mix, so the same mg/mcg dose usually needs fewer syringe units. More water does the opposite—sometimes easier for very small microgram targets.

TB-500 Calculator FAQs

How do you reconstitute TB-500?
TB-500 usually arrives as a lyophilized powder. Most people slowly add bacteriostatic water along the inside wall of the vial, let it settle, then gently roll (not shake hard) until it’s fully mixed. How much water you add is what sets your concentration—so measure that part carefully.
Can this calculator turn TB-500 mg or mcg into insulin syringe units?
Yes. Enter your vial’s mg on the label, the mL of bacteriostatic water you mixed, and the dosage you want in mg or mcg. It outputs the draw in U-100 units and mL so you can line it up with your syringe markings.
Why does changing the amount of bacteriostatic water change how many units I pull?
More water dilutes the same amount of TB-500, so each mL (and each syringe “tick”) contains less peptide. For the same mg/mcg dose, you need a longer pull—more units. Less water makes a stronger mix, so you usually pull fewer units for the same dose.
What does U-100 mean on an insulin syringe?
U-100 means the barrel is marked so 100 units = 1.0 mL. Quick examples: 10 units = 0.10 mL, 30 units = 0.30 mL. This calculator assumes those U-100 markings when it converts your TB-500 dose into units and mL.
Is this TB-500 calculator medical advice?
No. It’s a reconstitution and unit-conversion helper—not guidance on whether TB-500 is appropriate for you, what dosage to use, or how to treat an injury. For those decisions, talk to a qualified medical professional.