Thymosin Alpha-1
Thymic Immunomodulatory Peptide - Thymic peptide studied for immune modulation.
Thymosin Alpha-1 is a peptide originally isolated from the thymus gland, studied extensively for its role in modulating T-cell function and innate immune signaling.
Thymosin Alpha-1 is among the most clinically studied peptides in the catalog, with approvals in several countries for immune-related indications, though not in the United States. Research centers on its modulation of T-cell maturation and innate immune signaling.
Thymosin Alpha-1 specifications
- CAS number
- 62304-98-7
- Molecular formula
- C129H215N33O55
- Molecular weight
- 3108.32 g/mol
- Sequence
- 28-amino-acid thymic peptide
- Residues
- 28 residues
- Presentation
- Lyophilized powder
- Documented purity
- 99.69% by HPLC
- Available sizes
- 10mg ($80)
- Archived COA lots
- 3
- Intended use
- Laboratory research use only. Not for human or veterinary use.
Studied pathways
- Immune modulation - Investigated for maturation and activity of T-lymphocytes in immunology research.
Reported mechanisms in the literature
- Immune modulation - A thymic peptide studied for maturation and activity of T-lymphocytes and modulation of innate immune signaling. (Goldstein et al.)
What Thymosin Alpha-1 is researched for
- T-cell function - Studied for T-lymphocyte maturation and modulation of innate immune signaling. (Goldstein et al.)
- Immune support - Investigated in immune-support research contexts across cell and animal models. (Garaci et al.)
Thymosin Alpha-1 certificates of analysis on file
Every lot below was tested by an independent laboratory and the full report is published as a PDF. Purity is shown exactly as the report states it. The same records are searchable in the COA library and can be checked on the lot verification page.
| Lot | Tested | Size | Laboratory | HPLC purity | Identity | Certificate |
|---|---|---|---|---|---|---|
| TA1-101926-10 | 22 Oct 2026 | 10mg | ILS Laboratories | 99.21% | Confirmed (HPLC retention time) | COA PDF |
| HPPXJD | 9 Oct 2026 | 10mg | Freedom Diagnostics | 99.74% | Confirmed (LC-MS/MS) | COA PDF |
| THYMA10-042026-1 | 15 Apr 2026 | 10mg | Freedom Diagnostics | 99.65% | Confirmed (LC-MS/MS) | COA PDF |
Published literature on Thymosin Alpha-1
The mechanisms above trace to peer-reviewed studies indexed on PubMed. These are independent third-party publications, not Aspect Peptides claims. Browse indexed research on PubMed.
Thymosin Alpha-1 frequently asked questions
What is Thymosin Alpha-1?
A 28-amino-acid peptide originally isolated from the thymus, studied for modulating T-cell function and innate immune signaling.
Is it approved for human use?
It is approved for certain uses in some countries but is not an FDA-approved drug in the US. It is supplied here for laboratory research only.
What is it researched for?
Immune modulation, particularly T-lymphocyte maturation and activity, in immunology research.
Documented to 99.69% purity by HPLC · third-party COA every lot · from $80 · For laboratory research use only.
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