Thymosin α1 — The Immune Modulator
Thymosin α1 (Thymalfasin) is the immune system’s tuning fork. A 28-amino-acid peptide your thymus produces naturally, it’s one of the most studied names in immune-modulation research — looked at for how the body’s T-cells and defenses are organized and kept in balance. Every batch is independently third-party tested for purity and ships with its own certificate of analysis.
- ✓ Credit card / Apple Pay accepted
- ✓ Third-party COA included
- ✓ Free worldwide shipping over $99
Why source Thymosin α1 from Aeternum Life
Every Thymosin α1 batch is verified by an independent laboratory.
HPLC-tested identity and purity on every Thymosin α1 lot.
Sourced and handled to strict, defined specifications.
Discreet, tracked delivery.
What is Thymosin α1?
Thymosin α1 (also called Thymalfasin) is a 28-amino-acid peptide produced naturally by the thymus — the gland that trains your immune cells. It’s a signaling molecule research ties to how the immune system matures, coordinates and responds.
That role makes Thymosin α1 a cornerstone of immune-modulation research — studied around T-cells, dendritic cells and the balance of immune defense. Aeternum Life supplies it as ultra-high-purity research material with a batch-specific Certificate of Analysis on every order.
Thymosin α1 is a 28-residue fragment cut from a larger precursor, prothymosin α, and it comes from the thymus — the organ where T cells learn to tell self from non-self, and which shrinks steadily from adolescence onward. That origin shapes what the research asks of it. Published work centres on Toll-like receptors, particularly TLR2 and TLR9, on the maturation of dendritic cells that present antigen, and on how T cells differentiate afterwards. It is studied as a modulator that shifts the balance of an immune response rather than as something that simply amplifies it.
Research directions
Thymosin α1 sits at the center of immune-modulation research. Here’s the focus.
The headline: Thymosin α1 is studied for how it helps organize and balance immune responses.
The thymus trains T-cells, and T-cell activity is central to Thymosin α1 research.
It’s also studied around the innate-immune players that flag threats early.
A recurring theme is balance — an immune response that’s coordinated rather than over- or under-active.
Because it’s a natural thymic peptide, it’s a reference molecule in immune-signaling research.
For research purposes only. These materials are not drugs or dietary supplements and are not intended to diagnose, treat, cure or prevent any disease.
Join the Aeternum Life community
Get our full usage & reconstitution guides — Thymosin α1 included — plus members-only pricing, restock alerts and one-on-one support, free on our Telegram.
Join our Telegram
How Thymosin α1 is tested
- Certificate of Analysis (COA) for every Thymosin α1 batch
- HPLC purity & identity
- Mass-spectrometry confirmed
- Batch-tested and fully traceable
Every Thymosin α1 lot is released only after independent verification, so what you receive matches its stated identity and purity.
Handling & Storage
Guidance for handling Thymosin α1 as a laboratory research material.
Store lyophilized Thymosin α1 cold and protected from light, sealed and dry until use.
Handle Thymosin α1 according to standard laboratory practice for research materials.
Each Thymosin α1 batch ships with a batch-specific COA for identity and purity.
Thymosin α1 is supplied strictly for laboratory and research use. Not for human or veterinary consumption; no administration or dosing guidance is provided.
Specifications
- Name
- Thymosin α1 (Thymalfasin)
- CAS
- 62304-98-7
- Appearance
- White lyophilized powder
- Size
- 5 mg per vial
- Purity
- ≥ 99% (HPLC, see COA)
- Storage
- Store at 2–8°C, protect from light
For research use. Not intended to diagnose, treat, cure or prevent any disease.
Frequently asked questions
How does Thymosin α1 differ from Thymosin β4?
Only the name is shared. Thymosin α1 is a 28-residue immune-signalling peptide studied around Toll-like receptors and T-cell differentiation. Thymosin β4 is a 43-residue actin-binding protein studied around tissue repair and cell migration. They come from unrelated protein families and are researched in entirely different contexts.
What is Thymosin α1 studied for?
It’s studied in immune-modulation research — T-cells, dendritic cells and immune balance. We share these as research directions, not medical claims.
Is it the same as Thymosin β4?
No — different families. Thymosin α1 is studied for immune modulation, while Thymosin β4 is a tissue-repair protein. Reconstitution and handling guides are shared in our Telegram community.
Is Thymosin α1 for human use?
No. Aeternum Life supplies Thymosin α1 strictly as a research-grade material for laboratory research. It is not sold for human or veterinary consumption.
Is a COA available for Thymosin α1?
Yes — every Thymosin α1 batch ships with a batch-specific Certificate of Analysis covering identity and purity.
About Aeternum Life
Aeternum Life is a Japan-inspired peptide brand built on purity, transparency and rigorous testing — the same standard behind the Thymosin α1 on this page. Every product is presented by its composition and backed by batch-specific documentation.
Explore the full Aeternum Life range
Thymosin α1 is one of more than thirty research-grade materials we supply — each one backed by a batch-specific COA and independent testing.
- ✓ Credit card / Apple Pay accepted
- ✓ Third-party COA included
- ✓ Free worldwide shipping over $99