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Immune Research
Thymosin Alpha-1 (5mg)
SKU: PEP-040-5MG
In Stock
Next business day dispatch cutoffNext business day dispatch cutoff16:03:45
$139.99
$179.99Save $40.00 (22%)
CoA purity: 99.53%
Thymic Immune-Modulating Research Peptide
Thymosin Alpha-1 (5mg) will be supplied in Australia by Aussie Peptides with fast domestic shipping to all states and territories.
Thymosin Alpha-1 is a 28-amino-acid peptide originally isolated from thymic tissue. It is one of the most extensively studied immune-modulating peptides, with research interest centred on its role in T-cell differentiation and maturation, dendritic cell activation, and the regulation of innate and adaptive immune responses. Unlike Thymosin Beta-4 (TB-500), which is studied for tissue repair, Thymosin Alpha-1 is studied almost exclusively for immune function.
Research models include chronic viral infection, immune senescence, vaccine adjuvant response, and sepsis, with a large body of published clinical literature behind the compound.
Key Research Areas
- T-Cell Maturation — Studied for thymocyte differentiation and CD4+/CD8+ T-cell development
- Innate Immunity — Toll-like receptor signalling and dendritic cell activation models
- Chronic Infection Research — Studied in hepatitis B/C and other persistent viral infection models
- Immune Senescence — Studied for age-related decline in immune responsiveness
- Vaccine Adjuvant Research — Studied for enhanced antibody response to immunisation
Supplied as lyophilized powder, verified by HPLC and mass spectrometry. 5mg per vial. Fast domestic shipping across Australia, with batch-specific CoA information available in our CoA Library.
⚠ For in-vitro research and laboratory use only. Not for human consumption.
Product Specifications
| Compound | Thymosin Alpha-1 (5mg) |
| Category | Immune Research |
| Purity | 99.53% (CoA Reported) |
| Form | Lyophilised Powder |
| Storage (Lyophilised) | -20 °C — protect from light & moisture |
| Storage (Reconstituted) | 2–8 °C — use within 8–12 weeks |
| Reconstitution | Bacteriostatic water (recommended) |
⚠ For in-vitro research and laboratory use only. Not intended for human or veterinary use. By purchasing, you confirm you are a qualified researcher and will use this compound in accordance with all applicable laws and regulations.
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Frequently Asked Questions
What is Thymosin Alpha-1?
Thymosin Alpha-1 is a small peptide first isolated from the thymus — the gland where T-cells mature. It is one of the most-studied immune peptides in the research literature, with interest centred on how it helps T-cells develop, activates the immune system's front-line sentinel cells, and modulates the balance between different immune responses. It is also known in clinical literature as thymalfasin.
How is Thymosin Alpha-1 different from TB-500?
They share a name but not a job. TB-500 is Thymosin Beta-4, which is studied for tissue repair — tendons, muscle, wound healing. Thymosin Alpha-1 is a different peptide entirely, studied for immune function rather than repair. If the research question is recovery or injury, TB-500 is the usual choice; if it's immune response, Thymosin Alpha-1 is the relevant compound.
What does the research show about Thymosin Alpha-1?
Thymosin Alpha-1 has an unusually deep clinical research base for a peptide. It has been studied in chronic hepatitis B and C, as an adjuvant alongside vaccines to strengthen antibody response, in sepsis and critical-illness immune suppression, and in age-related immune decline. The common thread is restoring or strengthening a weakened immune response rather than suppressing an overactive one.
How do you reconstitute Thymosin Alpha-1?
Thymosin Alpha-1 is supplied as a lyophilized powder and should be reconstituted with bacteriostatic water (BAC water) immediately before use. Inject the BAC water slowly into the vial, directing the stream down the inside wall. Gently swirl to dissolve — do not shake. Once reconstituted, store at 2–8°C and use within 8–12 weeks. For a full step-by-step walkthrough, see our complete peptide reconstitution guide.
How should Thymosin Alpha-1 be stored?
Store lyophilized Thymosin Alpha-1 vials at -20°C, away from light and moisture. After reconstitution with BAC water, refrigerate at 2–8°C and use within 8–12 weeks. Do not freeze the reconstituted solution.
Where to buy Thymosin Alpha-1 in Australia?
Thymosin Alpha-1 (5mg) will be available through Aussie Peptides with fast domestic shipping to all Australian states and territories. Every vial is dispatched from within Australia, reducing delays linked to international freight and customs processing. Batch-specific Certificate of Analysis access will be available in our CoA library.
What is the availability and cost of Thymosin Alpha-1?
Thymosin Alpha-1 (5mg) is currently in stock at Aussie Peptides and available for domestic dispatch across Australia. Thymosin Alpha-1 (5mg) is priced at $139.99 per vial at Aussie Peptides. All orders ship domestically within Australia, and batch CoAs are available in our CoA library.