How should Thymosin A-1 be stored?

In lyophilized powder form, Thymosin A-1 is stable at room temperature short-term but should be refrigerated (2–8°C) for longer storage and kept away from light and moisture. Once reconstituted, keep refrigerated and use within 30 days. Avoid freeze-thaw cycles.

Is Thymosin A-1 approved by the FDA?

No. Thymosin A-1 is not FDA-approved for human use in the United States, though it is approved in other countries as an immune-modulating therapy. NextSelf Labs sells Thymosin A-1 strictly as a research chemical for laboratory research.

What is the purity of your Thymosin A-1?

All NextSelf Labs Thymosin A-1 is manufactured to ≥99% purity and verified by third-party laboratories using HPLC and mass spectrometry. The Certificate of Analysis for every batch is available on this page — match the batch number on your vial to the COA header to verify.

What has Thymosin A-1 been studied for?

Research has explored Thymosin A-1’s use as an adjunct in hepatitis B and C research, cancer immunotherapy research, and as an immune modulator in sepsis and vaccination response studies.

Do I need a prescription to purchase Thymosin A-1?

No. NextSelf Labs sells Thymosin A-1 as a research chemical for laboratory use only.

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Research Peptide

Thymosin A-1

4.9 (56 Reviews)

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A naturally occurring thymic peptide central to immune modulation research. Thymosin A-1 is one of the most studied compounds for T-cell function, immune balance, and antiviral response support.

Vial Size

10mg

Clear

BUNDLE & SAVE

1 Bottle $79.99 MOST POPULAR

2 Bottles $154.38

3+ Bottles $226.77

We accept

For RESEARCH USE ONLY (RUO).

About the Peptide

The thymus gland’s own signal.

Thymosin A-1 is a 28-amino-acid fragment of prothymosin alpha, first isolated from thymus gland extract in the 1970s by researchers studying thymic hormones. It plays a natural role in T-cell maturation and remains one of the most extensively studied peptides in immune modulation research.

The immune system doesn’t announce when it’s out of balance — it shows up as illnesses that linger longer than they should, or an inflammatory response that runs hotter than the moment calls for. Thymosin A-1 research sits at that balance point, studied for its capacity to support the immune system in both directions.

Published research has documented Thymosin A-1’s role in supporting T-cell differentiation and maturation, modulating dendritic cell function, and contributing to research on antiviral response, cancer immunotherapy, and vaccine adjuvant applications. It remains one of the most thoroughly characterized peptides in thymic and immune research.

Research Applications

Immune balance, studied closely.

A resilient immune system isn’t just about fighting harder — it’s about knowing when to stand down. Thymosin A-1 research addresses both sides of that equation.

T-Cell Maturation Research

Thymosin A-1 has been studied for its role in supporting T-cell differentiation and maturation, a process central to adaptive immune function.

Balanced Immune Modulation

Research has documented Thymosin A-1’s dual capacity to support immune response against pathogens while helping regulate excessive inflammatory activity.

Antiviral & Vaccine Adjuvant Research

Studies have explored Thymosin A-1’s use alongside antiviral therapies and vaccination protocols to support immune response.

Certificate of Analysis

Independently Tested. Verified by Batch.

Current Batch • THY10MGA

99.48%

Purity

Tested Purity by HPLC

10mg

Content

Labeled amount per vial

10.37mg

Net Content

Actual amount per vial

Thymosin Alpha-1

Identification

Mass spectrometry confirmed

View COA

Frequently Asked

Thymosin A-1

The thymus gland’s own signal.

Immune balance, studied closely.

T-Cell Maturation Research

Balanced Immune Modulation

Antiviral & Vaccine Adjuvant Research

Independently Tested. Verified by Batch.

Questions.

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