Thymosin Alpha-1 reconstitution calculator

Opens on a 10 mg vial, 1 mL of bacteriostatic water and a 1 mg dose, amounts recorded for Thymosin Alpha-1 in the compound library. Change any field and the draw updates.

Also known as Tα1.

Original calculator

The classic all-in-one form

Every input on one card, the way the original site worked.

Compound (optional)

Typical vial strength and dose filled in; recorded examples appear as one-tap presets.

Syringe size
mg
Second peptide (optional)
Formulate10units
  • Draw 10 units for 1 mg doses of Thymosin Alpha-1.
  • Concentration 10 mg/mL (10 mg in 1 mL). Each vial holds 10 doses of 0.1 mL.

For research and educational use. This calculator does not provide medical advice.

How the numbers work for Thymosin Alpha-1

A 10 mg vial of Thymosin Alpha-1 with 1 mL of bacteriostatic water is 10 / 1 = 10 mg/mL. A 1 mg dose is 1 / 10 = 0.1 mL, which is 10 units on a U-100 syringe, or the same number of clicks on a pen. With 2 mL of water instead, the concentration is 5 mg/mL and the same dose is 20 units. At that dose the vial holds 10 doses.

The formulas are the same for every compound: concentration is the vial amount divided by the water, the draw is the dose divided by the concentration, and a U-100 unit is 0.01 mL. They are written out on the methodology page.

Thymosin Alpha-1 units at a glance

Syringe units for the amounts recorded for Thymosin Alpha-1, from a 10 mg vial, across the water volumes people most often use. These are recorded examples used for the arithmetic, not recommendations; a draw under 6 units is hard to measure repeatably and more water fixes that.

U-100 syringe units per dose, 10 mg vial of Thymosin Alpha-1
Dose1 mL water10 mg/mL2 mL water5 mg/mL3 mL water3.33 mg/mL
1 mg10 units0.1 mL20 units0.2 mL30 units0.3 mL

Where the amounts come from

The doses above are recorded amounts from the Thymosin Alpha-1 entry in the compound library, which lists the sources behind them, labels each as clinical, preclinical or community-reported, and states what the evidence can and cannot support. The vial strength is the one most often listed by suppliers. Nothing on this page is medical advice.

Common questions about Thymosin Alpha-1

Is Thymosin Alpha-1 an FDA-approved medicine?
Thymosin alpha-1 is approved as Zadaxin in China, Italy and other countries but not by the FDA. FDA reviewed it as a bulk substance for compounding, placed it in category 2 for immunogenicity and characterization concerns, and the nomination was withdrawn.
How much bacteriostatic water do I add to a 10 mg vial of Thymosin Alpha-1?
There is no single right amount: the water sets the concentration and the size of the draw, not the dose. This page opens on 1 mL, which makes 10 mg/mL and puts a 1 mg dose at 10 units on a U-100 syringe. With 1 mL the same dose is 10 units; with 3 mL it is 30 units. More water gives a larger, easier-to-read draw, as long as the vial can hold it.
How many units is 1 mg of Thymosin Alpha-1?
At 10 mg/mL (10 mg in 1 mL of water), 1 mg is 0.1 mL, which is 10 units on a U-100 insulin syringe or 10 clicks on a peptide pen. At any other concentration the number changes; the units table on this page gives the other common water volumes.
How many doses are in a 10 mg vial of Thymosin Alpha-1?
At 1 mg per dose, a 10 mg vial holds 10 doses. The water volume changes the size of each draw, not the number of doses in the vial.
Where do the Thymosin Alpha-1 amounts on this page come from?
They are amounts recorded for Thymosin Alpha-1 in the compound library (https://peptidescalculator.com/compound-library/thymosin-alpha-1), which lists the sources behind them and labels each as clinical, preclinical or community-reported. They are shown for the arithmetic, not as recommendations, and the vial strength is the one suppliers list most often. Nothing on this page is medical advice.

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