TB-500 Dosage Calculator
This TB-500 dosage calculator converts a dose in milligrams into the units to draw on a syringe. TB-500 amounts are in milligrams, which sounds like the simple case, and mostly is. The catch is company: the compound it is most often calculated next to, BPC-157, is measured in micrograms, a thousand times smaller. Enter the vial, the water and your dose, and get the exact units.
Units measure volume, not dose. The same units on a different mix are a different dose.
The link holds only the numbers you typed. No account, no tracking, nothing else.
On this page
TB-500 dosage calculator table: dose to units for the common mixes
Three amounts, five mixes. TB-500 draws run big compared with the microgram compounds, and one cell in this table reaches 100 units: a full 1 mL syringe for a single amount, at the weakest mix. The mix decides whether a draw is comfortable or impossible.
| Vial | Water | Concentration | 1 mg draw | 2 mg draw | 2.5 mg draw |
|---|---|---|---|---|---|
| 5 mg | 1 mL | 5 mg/mL | 20 units | 40 units | 50 units |
| 5 mg | 2 mL | 2.5 mg/mL | 40 units | 80 units | 100 units |
| 10 mg | 1 mL | 10 mg/mL | 10 units | 20 units | 25 units |
| 10 mg | 2 mL | 5 mg/mL | 20 units | 40 units | 50 units |
| 10 mg | 3 mL | 3.33 mg/mL | 30 units | 60 units | 75 units |
Look at the 2 mg column. It runs from 20 units to 80 depending on nothing but the vial and the water. A unit number quoted without a mix is meaningless for TB-500 exactly as it is for every other compound.
Two vials, two unit systems
TB-500 and BPC-157 are sold side by side, blended into the same vials, and calculated in the same sitting more often than either is handled alone. Both vials are labelled in milligrams. But BPC-157 amounts are worked in micrograms and TB-500 amounts in milligrams, so the two calculations sitting next to each other on the bench use numbers a thousand times apart for amounts of the same rough size. A 250 on one side of the page and a 2.5 on the other is normal here, and it is exactly the setting where a unit gets copied across by mistake.
The defence is boring and it works: check the unit on every field, every time, and read the dose the calculator shows back, in both units, before drawing. Each compound page here starts in that compound's own unit for this reason, this one in milligrams, the BPC-157 calculator in micrograms.
Common questions
How many units is 2 mg of TB-500?
It depends on the mix. In a 10 mg vial with 2 mL of water (5 mg per mL), 2 mg is 40 units. The same vial with 1 mL of water is twice as strong, so 2 mg is 20 units. In a 5 mg vial with 2 mL (2.5 mg per mL), 2 mg is 80 units. The table above covers the common mixes.
How much BAC water do I add to a 10 mg TB-500 vial?
Your choice, and the water sets how big the draw is. For a 2 mg amount: with 1 mL of water the draw is 20 units, with 2 mL it is 40 units, and with 3 mL it is 60 units. The amount is 2 mg every time. Pick the mix that puts your amount on a mark you can read easily, or work backwards from the draw you want with the reconstitution calculator.
Is TB-500 measured in mg or mcg?
Milligrams, on the vial and in the dose. The trap is its usual partner: BPC-157 is measured in micrograms, so anyone calculating the two side by side is working in two unit systems at once, a thousand times apart. Type a TB-500 amount into a field set to mcg and the answer comes out a thousand times too small. This calculator starts in mg for TB-500 and shows the dose back in both units so you can check it.
How many doses are in a 10 mg vial of TB-500?
At 2 mg an amount, five. At 2.5 mg, four. At 1 mg, ten. It is just the vial amount divided by the dose, and the water has nothing to do with the count. The calculator shows the count for your own numbers as you type.
Is TB-500 an approved medicine?
No. TB-500 is a laboratory-made fragment of thymosin beta-4, a protein the body makes, and it is not approved by the FDA or any other medicines regulator for any use. The powder vials sold for research are not approved medicines. The methodology page records the regulatory position properly.
Arithmetic only
This calculator does maths on the numbers you enter. It works out concentration, draw volume and syringe units from the vial amount and water volume you give it. Nothing more.
It does not recommend amounts, schedules or products, and it does not know what is in your vial. It uses the amount printed on the label. If the label and the actual contents differ, the result differs too. For medical questions, talk to a clinician.
How the maths works, and where the facts on this site come from: Methodology and sources.
Report an error or ask a question
Found a wrong number on this page, or stuck on the maths? Send a correction or a question here. Confirmed errors get fixed and written into the change log on the Methodology page.