Longevity
Thymosin Alpha-1 Dosing & Reconstitution Calculator
Immune-modulating thymic peptide enhancing T-cell function and pathogen defense.
TL;DR - Thymosin Alpha-1 is a longevity peptide with a typical starting dose of 1.5 mg. For a 10 mg vial, add 2 mL bacteriostatic water to yield 5 mg/mL.
1.5 mg
Start Dose
10 mg
Vial
2 mL
BAC Water
5
mg/mL
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Frequently Asked
How do I reconstitute Thymosin Alpha-1?
Add 2 mL of bacteriostatic water to a 10 mg vial, injecting slowly down the inside wall. Swirl gently; never shake. This yields a concentration of 5 mg/mL.
What is the recommended dose of Thymosin Alpha-1?
A typical research dose is 1.5 mg. Consult the ASCEND calculator for your specific vial concentration and draw volume.
How many doses are in a Thymosin Alpha-1 vial?
A 10 mg vial reconstituted with 2 mL BAC water yields approximately 6 doses at 1.5 mg each.
How many IU is 1.5 mg of Thymosin Alpha-1 on a syringe?
With a 10 mg vial reconstituted in 2 mL bacteriostatic water, the concentration is 5 mg/mL. For a 1.5 mg dose: Volume = 1.5 mg ÷ 5 mg/mL = 0.3 mL. Draw to the 30 line on a 100-unit insulin syringe. You can adjust these values in the ASCEND calculator for any vial size.
What does a Thymosin Alpha-1 dosage calculator do?
A Thymosin Alpha-1 dosage calculator converts your vial size and BAC water volume into an exact syringe draw in IU. Enter your vial strength (10 mg), reconstitution volume (2 mL), and target dose to get the precise line to draw on an insulin syringe.
What is the Thymosin Alpha-1 reconstitution calculator formula?
Draw volume (mL) = Dose (mg) divided by Concentration (mg/mL). For a 10 mg vial with 2 mL BAC water: concentration = 5 mg/mL. For a 1.5 mg dose, the ASCEND calculator gives the exact IU line on your syringe instantly.
Peptide Intelligence
What is Thymosin Alpha-1 and how does it modulate immunity?
Thymosin Alpha-1 (Ta1) is a 28-amino acid peptide naturally produced by the thymus. It matures and activates T-cells, dendritic cells, and NK cells by signaling through Toll-like receptors 2 and 9. It enhances adaptive immunity while modulating inflammatory overactivation.
What is the half-life of Thymosin Alpha-1?
Thymosin Alpha-1 has a short half-life of approximately 2 hours after subcutaneous injection. Standard clinical dosing (as Zadaxin) is 1.6 mg twice weekly. The immunological effects on T-cell maturation persist well beyond plasma clearance of the peptide.
What is Thymosin Alpha-1 approved for in some countries?
Thymosin Alpha-1 (Zadaxin) is approved in over 35 countries for treatment of hepatitis B and C, certain immunodeficiencies, and as an adjuvant in cancer immunotherapy. It is used clinically in Asia and South America. It remains investigational in the US and EU.
Also Explore
Research Guides
Bacteriostatic Water Guide
What it is & why it matters for reconstitution
How Much BAC Water for Thymosin Alpha-1?
10 mg vial reconstitution recipe + concentration table
Thymosin Alpha-1 on Insulin Syringe
1.5 mg draw on 30u / 50u / 100u syringes
Thymosin Alpha-1 + BPC-157 Stack
Gut repair + immune modulation
Insulin Syringe Guide
Choosing the right gauge & volume for your draw
Multi-Lab Verification Standard
How ASCEND ensures dosing accuracy
Primary Sources
T-cell Modulation Review (Int J Mol Sci 2021)
ClinicalTrials COVID-19
Data last reviewed 2026-06-03 · Methodology →
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