TB-500 reconstitution calculator
thymosin beta-4 fragment
TB-500 is a synthetic fragment of thymosin beta-4, a protein involved in actin regulation and tissue repair. Interest is driven by animal recovery studies; human trial evidence is minimal. It is a fixture of anti-doping violations, so athletes should treat it as radioactive.
Enter vial size, water volume, and the dose your provider gave you.
This tool converts the numbers you enter (dose ÷ concentration = volume). It never suggests a dose. The FDA has documented hospitalizations caused by mg / ml / unit conversion errors with vial-and-syringe products - if the readout surprises you, stop and verify with your prescriber or pharmacist.
Questions people actually search
How much water for a 5 mg vial of TB-500?
Any volume works mathematically - it only sets concentration. With 2.5 ml in a 5 mg vial (2 mg/ml), each 10 units (0.1 ml) carries 0.2 mg. Choose a volume that makes your typical draw land between 10 and 50 units for easy reading.
Is TB-500 banned in sports?
Yes. TB-500 / thymosin beta-4 is prohibited at all times under the WADA Prohibited List, and it appears regularly in doping sanctions, including in horse racing. Collegiate and military testing programs largely mirror WADA.
Is TB-500 the same as thymosin beta-4?
TB-500 is a synthetic peptide corresponding to the active fragment (17-23) of thymosin beta-4, not the full 43-amino-acid protein. Research literature usually studies the full protein; sellers usually ship the fragment. That distinction matters when reading studies.