Peptides
Thymosin Alpha-1
Thymosin Alpha-1 is a peptide studied for its role in immune-modulation research. Below, we compare vendors currently stocking research-grade Thymosin Alpha-1 — not just a single sales page.
Thymosin Alpha-1 is a peptide studied for its role in immune-modulation research. Below, we compare vendors currently stocking research-grade Thymosin Alpha-1 — not just a single sales page.
Prices and testing claims are pulled from each vendor's product listing. Always confirm current price and COA (Certificate of Analysis) on the vendor's site before buying.
| Vendor | Price | Purity Testing | Code | |
|---|---|---|---|---|
 Amino VaultBest Value |
$89.25 | Third-party COA | Buy Here → | |
 American Peptides |
$125.00 | Third-party COA | Buy Here → |
Thymosin Alpha-1 is a naturally occurring peptide derived from the thymus gland, studied for its role in modulating immune function. It holds regulatory approval in several countries outside the United States (marketed as Zadaxin) for immune-related indications, though it does not have FDA approval.
Research-grade Thymosin Alpha-1 is typically supplied as a lyophilized powder in sealed vials, commonly at 5mg to 10mg strengths, intended for laboratory research use.
Thymosin Alpha-1 is studied for its effects on T-cell maturation and function, modulating both innate and adaptive immune responses — a mechanism that has made it a subject of research in infectious disease, vaccine-adjuvant, and immune-support contexts internationally.
A substantial international clinical literature has examined Thymosin Alpha-1 as an adjunct treatment for hepatitis B and C and as an immune modulator in various infectious and oncologic contexts, primarily outside the US regulatory system.
Because of its studied effects on T-cell responses, Thymosin Alpha-1 has also been researched as a potential vaccine adjuvant and in contexts involving immunocompromised patients.
Where used clinically under its international approvals, documented side effects have generally been mild, including injection-site reactions; it does not have FDA approval in the United States, and research-grade material sourced outside regulated pharmaceutical supply chains has not undergone equivalent quality controls.
Dosing protocols used in international clinical trials and approved-use contexts are documented in that literature; no FDA-approved dosage exists for research-grade Thymosin Alpha-1 in the United States.
Compound X does not sell Thymosin Alpha-1 directly. We provide independent research, comparisons and vendor links — see the vendor comparison table above for current US, UK, Canada and Australia options.
Thymosin Alpha-1 clinical research is indexed on PubMed under "Thymosin alpha 1 immune modulation" and "Zadaxin thymosin clinical trial."
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