Research Peptide · US Supplier
Buy Thymosin Alpha-1 in the USA
Thymosin Alpha-1 (TA-1 / Tα1) supplied for laboratory research. ≥99% HPLC purity, batch-matched third-party COA, cold-chain packaging, same-day US shipping.
About This Compound
Thymosin Alpha-1 — commonly abbreviated TA-1 or Tα1 — is a 28-amino-acid acetylated peptide first isolated from thymic tissue in the 1970s. It is one of the most extensively cited immune-signalling peptides in the preclinical and in-vitro research literature and has been the subject of hundreds of published studies since its discovery.
Structurally, TA-1 is an N-terminally acetylated 28-mer (MW 3108.3 Da). Because of its N-acetyl modification and length, our synthesis workflow uses SPPS with on-resin acetylation followed by preparative HPLC purification to ≥99%. Identity is confirmed by ESI-MS; endotoxin is below 0.5 EU/mg by LAL.
Every batch is sent to Verum Analytics (Switzerland) for a matching third-party COA that ships with every order and is publicly verifiable in our /coa-library.
Presented as a lyophilized white powder in septum-sealed 5 mg or 10 mg vials for reconstitution with bacteriostatic water for laboratory use.
Quality Benchmarks
Every batch shipped from BioInfinity is verified against these specifications by an independent third-party lab before release.
- Purity
- ≥ 99% by reverse-phase HPLC
- Identity
- Confirmed by ESI-MS mass spectrometry
- Endotoxin
- < 0.5 EU/mg (LAL assay)
- Third-Party COA
- Verum Analytics (Switzerland) — batch-matched
- Origin
- Solid-phase peptide synthesis (SPPS), Fmoc chemistry
- Presentation
- Lyophilized white powder, septum-sealed vial
- Storage
- Refrigerate 2–8 °C; long-term −20 °C, protect from light
- Batch Traceability
- Every vial tied to a lot number & verification code
Research Applications in the Literature
Non-exhaustive list of subjects investigated in the published preclinical / in-vitro literature. Provided for research-context reference only — not a claim of efficacy.
- TLR-signalling pathway in-vitro studies
- Dendritic-cell maturation preclinical models
- T-cell differentiation & Th1/Th2 balance research
- Cytokine (IL-2, IFN-γ) modulation assays
- Antiviral-response preclinical model literature
- Immune-checkpoint pathway research
- Hepatocyte-model in-vitro studies
Frequently Asked Questions
Where can I buy Thymosin Alpha-1 in the USA?▾
BioInfinity is a US-based research peptide supplier shipping Thymosin Alpha-1 same-day from our Manhattan facility. Every vial ships with a batch-matched third-party Certificate of Analysis (COA) and includes cold-chain packaging when the transit route requires it.
What purity is your Thymosin Alpha-1?▾
Our Thymosin Alpha-1 is ≥ 99% pure by reverse-phase HPLC, identity-confirmed by mass spectrometry, and endotoxin-tested via LAL assay. The exact assay values for the batch you receive are published on your product page and are also included as a printed COA in the shipment.
Do you provide a Certificate of Analysis (COA) with Thymosin Alpha-1?▾
Yes. Every shipment includes a batch-matched COA from an independent third-party laboratory (Verum Analytics, Switzerland). You can also verify the batch online in our public COA library using the verification code printed on the vial label — no login required.
How is Thymosin Alpha-1 shipped?▾
USPS Priority (2-3 business days) or UPS Ground (3-5 days). Cold-chain packaging with gel packs sized to the transit route. Discreet plain unbranded outer boxes — the label carries only the address and standard postal markings.
What payment methods can I use for Thymosin Alpha-1?▾
Credit / debit card (Visa, Mastercard, Amex, Discover), Zelle, Venmo, Cash App, USDC stablecoin, and wire transfer for institutional orders. Zelle typically clears fastest and is the most common payment method our repeat customers use.
Is Thymosin Alpha-1 FDA-approved or intended for human use?▾
No. Thymosin Alpha-1 is not FDA-approved for any therapeutic indication. BioInfinity supplies Thymosin Alpha-1 strictly for in-vitro laboratory research. It is not intended for human, veterinary, or in-vivo use of any kind.
How should I store Thymosin Alpha-1 once it arrives?▾
The lyophilized (freeze-dried) powder is stable at 2–8 °C refrigeration for normal-use timeframes. For extended storage until the expiry date, store at −20 °C protected from light. Once reconstituted for bench work, refrigerate at 2–8 °C and use within 3–4 weeks per general peptide-handling literature.
Can I get a bulk / institutional discount on Thymosin Alpha-1?▾
Yes. Professional accounts qualify for tiered volume discounts. Create a Professional account at /account, or e-mail [email protected] with your institution and PO details.
What is your return policy on Thymosin Alpha-1?▾
Unopened, cold-chain-intact vials can be returned within 14 days of delivery for a refund minus return shipping. Opened vials are non-returnable due to the nature of the product. If a shipment arrives damaged or thawed, contact us within 48 hours for a free replacement.
How fast do orders for Thymosin Alpha-1 ship?▾
Orders placed by 3:00 PM ET Monday–Friday ship same-day from Manhattan. Weekend orders ship the following Monday. You'll receive a tracking number by email the moment the label is scanned by USPS or UPS.
Do you ship Thymosin Alpha-1 internationally?▾
We ship domestically within the 50 United States plus Puerto Rico and the US Virgin Islands. International shipments are evaluated case-by-case and require additional documentation — please contact [email protected] for a quote.
Where can I read your Thymosin Alpha-1 COA?▾
Every batch's COA is browsable from our public /coa-library page. You can also click the "View COA" button on the Thymosin Alpha-1 product page (/product/thymosin-alpha-1) or on the vial label itself, which carries a QR code that resolves to the batch's verification page.
What sizes does Thymosin Alpha-1 come in?▾
5 mg and 10 mg septum-sealed lyophilized vials. Institutional bulk sizes on request through [email protected].
Is Thymosin Alpha-1 the same as TB-500?▾
No — they are unrelated peptides from different thymic-derived families. Thymosin Alpha-1 is a 28-mer immune-signalling peptide. TB-500 is a shorter synthetic fragment of Thymosin Beta-4, which is a separate actin-sequestering protein. Both are commonly stocked in research labs but they investigate very different pathways.
Related Research Peptides
Frequently sourced together by research groups.
Ready to Order?
Same-day shipping from our Manhattan facility. Third-party Certificate of Analysis included with every shipment.
All products sold by BioInfinity are supplied strictly for in-vitro laboratory research use only. They are not FDA-approved for any therapeutic indication and are not intended for human or veterinary use.