Thymosin Alpha-1 Calculator
Thymosin Alpha-1 (also known as Tα1) reconstitution and dosage reference — calculate vial concentration, BAC water volume, and exact syringe units below.
Also known as: Tα1, Zadaxin
At the reference preset of a 5mg Thymosin Alpha-1 vial reconstituted with 2 mL of bacteriostatic water, a 1.6mg dose measures 64 units on a U-100 insulin syringe.
Thymosin Alpha-1 is a 28-amino-acid immunomodulatory peptide derived from the thymus.
- Concentration
- 2.5 mg/mL
- Draw volume
- 0.64 mL
- Units (U-100)
- 64
- Doses per vial
- ≈ 3
- Reference preset
- 5mg · 2mL · 1.6mg
Reference values from the default preset — adjust the calculator below for your vial.
How to use this calculator›
- 1. Vial — the peptide amount printed on the vial, in milligrams.
- 2. BAC water — the bacteriostatic water added to the vial. More water means a lower concentration and a larger, easier-to-read draw.
- 3. Dose — the single dose being measured, in milligrams.
- 4. Syringe — the barrel being drawn into. The diagram rescales to that syringe, so the same dose sits at a different mark on a 0.3 mL barrel than on a U-100.
Educational reference only — not medical advice or a dosing recommendation.
What is Thymosin Alpha-1?
Thymosin Alpha-1 is a 28-amino-acid immunomodulatory peptide derived from the thymus. It is approved in many countries (as Zadaxin) for hepatitis B, hepatitis C, and as an adjuvant in cancer therapy. Typical adult dosing is 1.6 mg subcutaneously twice weekly.
Where researchers source this
Vendors below have been manually vetted for third-party COA practice and shipping reliability. Verify the current Certificate of Analysis on the vendor's product page before purchase.
Ascension PeptidesUSA-based research vendor (Castle Rock, Colorado) publishing a per-batch Certificate of Analysis library with public lot IDs, so a vial can be matched to its own COA before and after purchase. Recent HPLC purity 99.79–99.98% across the catalog. Ships from the US and carries the full GLP-1 reference range alongside repair, longevity and cosmetic compounds.
Buy Thymosin Alpha-1 10mg →Affiliate link — we may earn a commission at no extra cost to you.
Particle PeptidesEU-based vendor (Slovakia, since 2015) shipping to EU, UK, and Switzerland. The only European supplier publishing all seven test parameters per batch (purity, identity, content, bioburden, endotoxins, heavy metals class 1 & 2). Manufacturer is cGMP / ISO 9001 / ISO 13485 compliant.
Buy Thymosin Alpha 1 5mg →Affiliate link — we may earn a commission at no extra cost to you.
| 1.6 mg | lyophilized powder |
| 5 mg | lyophilized powder |
| 10 mg | lyophilized powder |
| 0.4 mg | ≈ 16 U-100 units (at 5mg / 2mL) |
| 0.9 mg | ≈ 36 U-100 units (at 5mg / 2mL) |
| 1.6 mg | ≈ 64 U-100 units (at 5mg / 2mL) |
How it's typically prepared
Reconstitute with sterile or bacteriostatic water per label. Refrigerate.
Frequently asked questions
- Is Thymosin Alpha-1 FDA-approved?
- Not in the United States. It is approved in many other countries for chronic hepatitis.
Other Immune peptides
PeptideDose is an educational reference. It is not medical advice and does not replace consultation with a licensed healthcare provider. Doses shown in presets are derived from published protocols and product labels — they are not personal recommendations.