TB-500 is a synthetic fragment of thymosin beta-4 used in healing protocols. Enter your dose, vial size and water, and the syringe shows exactly how many units to draw.
= 2,500 mcg | Typical dose is 2 to 2.5 mg, twice weekly while loading.
1 mg = 1,000 mcg (micrograms). Most peptide protocols are written in mcg.
Common vial sizes are 5 and 10 mg.
For a 10 mg vial mixed with 2 mL bacteriostatic water (5.00 mg/mL), on a U-100 insulin syringe.
| Dose | Volume | Units | Doses per vial |
|---|---|---|---|
| 1 mg | 0.200 mL | 20u | 10 |
| 2 mg | 0.400 mL | 40u | 5 |
| 2.5 mg | 0.500 mL | 50u | 4 |
| 5 mg | 1.000 mL | 100u | 2 |
Most protocols load at 2 to 2.5 mg twice a week for 4 to 6 weeks, then drop to 2.5 mg once a week for maintenance.
Swirl gently to mix, never shake, and keep the mixed vial in the fridge.
Every step below uses the numbers you entered above.
Swab the rubber tops of the 10 mg TB-500 vial and the bacteriostatic water vial with fresh alcohol pads. Let them air dry for a few seconds.
Pull 2 mL of bacteriostatic water into a reconstitution syringe (usually a 3 mL syringe with a 21g needle).
Inject the water against the inside wall of the vial, don't blast it directly onto the powder. This protects the peptide from shear damage.
Gently swirl until the powder is fully dissolved and the liquid is clear. Never shake, foaming denatures the peptide.
On your 100-unit (1 mL) insulin syringe, pull the plunger back until the rubber tip lines up with 50, that's your 2.50 mg dose. Tap out any air bubbles, then inject as directed.
Cap the vial and store at 2–8 °C (36–46 °F). Most reconstituted peptides remain stable for 3–4 weeks refrigerated.
With a 10 mg vial mixed with 2 mL of bacteriostatic water (5 mg/mL), 2.5 mg is 0.5 mL, which is 50 units on a U-100 insulin syringe.
2 mL is the most common choice. It gives 5 mg/mL, so every 10 units equals 0.5 mg.
Twice weekly during a 4 to 6 week loading phase, then once weekly for maintenance.
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Educational only. Not medical advice.
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