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Thymosin Alpha 1

Synthetic 28-amino-acid thymic peptide, supplied for laboratory research use only.

$89/ 10mg vial

$44.50 per vial with Buy 1, Get 1 Free

1

  • 99.74% pure on this exact lot, verified by an independent lab, not by us
  • Tested in the USA. Ships within 1 business day, stored frozen, stable at room temperature until you mix it
  • Retest it at any lab. If it doesn't match our report, every dollar back
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All products currently listed on this site are for research purposes only.

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Proof, not promises. Every batch, tested by an outside lab.

Every batch of Thymosin Alpha 1 is tested by an outside lab before it goes on sale — not by us. The one shipping now is lot HPPXJD: 99.74% pure by HPLC, tested by Freedom Diagnostics on 12 Oct 2026. The signed report is right here. Purity is the number the lab measured, never “at least 99” — and a batch that misses its spec never ships.

Thymosin Alpha 1 · 10mgLot HPPXJDLive batch data
Purity99.74%
Passed
Tested by
Freedom Diagnostics
Tested on
12 Oct 2026
Net content
8.37 mg
Contaminant screens
Heavy metalsEndotoxinsMicrobialSolvents
See all lab reports

What happens before a vial reaches you

  1. 1Made in a controlled facilityDocumented, repeatable steps for every batch.
  2. 2Purity testedAn outside lab measures it and reports the exact number.
  3. 3Identity confirmedA second test proves it is what the label says.
  4. 4Report publishedSigned, filed by lot number, and public before the vial ships.
Thymosin Alpha 1 — molecular specimen
T-cell functionimmune modulation
Antiviral responseinnate immunity
Tumor immunityimmune surveillance

How Thymosin Alpha 1 works

An immune-modulating research peptide studied for tuning the body's defenses.

01

T-cell functionimmune modulation

Studied for supporting T-cell function and the immune system's coordination.

02

Antiviral responseinnate immunity

Investigated for the body's response to viruses across infectious-disease models.

03

Tumor immunityimmune surveillance

Researched for its role in tumor-immunology models.

For research use only. Mechanisms described reflect published research literature.

Every batch we've tested

Anyone can show you one good report. Here is every batch of Thymosin Alpha 1 we have ever released, newest first, each with its own signed report. Nothing hidden, nothing cherry-picked.

2 batches on record · latest tested 12 Oct 2026

What the studies found

Published findings on this compound, each linked to its source. Animal and lab results are context, not claims about this product.

Clinical track recordClinical
30+

A 2024 systematic review of Thymosin Alpha 1 in human clinical studies covered more than 30 trials and over 11,000 participants.

trials of immune effects
Alternative Therapies in Health and Medicine 2024 · systematic review
30+

clinical trials (11,000+ participants)

Human clinical studies covered by a 2024 systematic review.

Tumor immunityPreclinical

In breast-cancer cell and mouse models, Thymosin Alpha 1 reversed the M2 (tumour-friendly) polarisation of tumour-associated macrophages.

M2 → M1, in vitro
M2 polarisationbaseline
With Tα1reversed

Direction of macrophage polarisation in cell and mouse models.

Approved as a drugClinical
35+

As of a 2009 review, Thymosin Alpha 1 was approved in more than 35 countries for hepatitis B and C, and as an immune stimulant and adjuvant.

countries, as Zadaxin
35/40countries with approved use

Each dot ≈ one country with approved use, as of a 2009 review.

Full research: Thymosin Alpha-1: More Trials Than Most, Less Certainty Than You'd Expect

What buyers say

Common questions

Quick answers about Thymosin Alpha 1.

99.74% pure, or your money back.

Test any batch at any lab you like. If it doesn't match our report, you get every dollar back. No return shipping, no forms, no arguments.

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