Free tool

TB-500 Dosage Calculator

TB-500 is a research peptide people reconstitute at home. It is not FDA approved. Enter your vial and dose to see the exact units to draw on the syringe.

Draw to
40units
0255075100 40u
Quick fill
mg
mL
mg
Concentration5.00 mg/mL
Draw0.400 mL
Doses / vial5

Informational only. Not medical advice. Always double-check every dose with a licensed provider.

TB-500 example

A 10 mg vial with 2 mL of water is 5.00 mg/mL. A 2 mg dose is 0.40 mL, which reads as 40 units on a U-100 syringe, and the vial holds 5 doses. These are example numbers, change them to yours.

Questions

TB-500, frequently asked

How do I calculate a TB-500 dose?

Divide the TB-500 in the vial (mg) by the bacteriostatic water you added (mL) to get the strength in mg/mL. Divide your target dose by that strength to get the mL to draw, then multiply by 100 for the units on a U-100 syringe. For example, a 10 mg vial with 2 mL of water is 5.00 mg/mL, so a 2 mg dose is 0.40 mL, which is 40 units.

How much bacteriostatic water do I add to a TB-500 vial?

That is your choice, and it only changes the strength, not how much TB-500 you have. More water makes it weaker (more units per dose); less water makes it stronger. This tool shows the units for whatever amount you enter.

How many units of TB-500 do I draw?

It depends on your vial strength and your dose. With the example above (10 mg in 2 mL, 2 mg dose) you would draw 40 units on a U-100 syringe. Enter your own numbers to see yours.

Is TB-500 FDA approved?

It depends on the exact product. Some peptides and GLP-1 medicines are FDA approved and some are not. See our plain guide on what peptides are FDA approved.

Read next

Guides that go with this

How to reconstitute a peptide → Does bacteriostatic water need the fridge? → What peptides are FDA approved? →
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