Thymosin Alpha-1
otherThymosin Alpha-1 is a research-use-only peptide. PeptideSource compares suppliers on purity, COAs, and price-per-mg.
Also known as: Thymosin Alpha 1, Thymosin Alpha, Thymalfasin, TA1, Thymosin Alpha 1 RGDR, Thy Alpha 1, Thy Alpha-1
Thymosin Alpha-1 works by enhancing the immune response, particularly by stimulating T-cell activity and modulating cytokine production. It is a naturally occurring peptide derived from the thymus gland, where it plays a role in the development and regulation of the immune system. Research into Thymosin Alpha-1 began as scientists sought ways to bolster immune function, especially in conditions where the body's natural defenses are compromised. As understanding of its immunomodulatory effects grew, interest expanded to include various clinical settings. Beyond that, work continues on exploring its full therapeutic potential in immune-related conditions. Today, it is primarily studied for its effects on:
- Immune system modulation
- Viral infections
- Cancer immunotherapy
- Autoimmune disorders
Thymosin Alpha-1 has been studied in combination with other therapies to evaluate synergistic effects.
PeptideSource editorial · Updated Jul 18, 2026
For research use only. PeptideSource does not sell peptides directly. Compare third-party supplier listings at your own discretion.
Compare suppliers
Size | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Shop now | Shop | Shop | Shop | Shop | Shop | Shop | Shop | Shop | Shop | Shop | Shop | Shop | Shop | Shop | Shop | Shop | Shop |
| Product | Thymosin Alpha 1 | Thymosin Alpha-1 TA1 | Thymosin Alpha-1 | Thymosin Alpha-1 - | TA-1 Complex Thymosin Alpha-1 | Thymalin 10/ | Thy Alpha 1 | Thymosin Alpha-1 | Thymosin Alpha-1 | Thymosin Alpha-1 | Thymosin Alpha-1 | Thymosin Alpha 1 | Thymosin Alpha-1 | Thymosin Alpha 1 Tα1 | Thymosin Alpha-1 | Thymosin Alpha-1 | Thymosin Alpha-1 Premium | Thymosin Alpha 1 RGDR |
| Size | 10 mg | 16 mg | 10 mg | 10 mg | 10 mg | 10 mg | 10 mg | 5 mg | 5 mg | 10 mg | 10 mg | ||||||
| Price | $639.90 | $370.00 | $39.99 | $26.00 | $89.00 | $63.75 | $79.00 | $79.99 | $80.00 | $80.00 | $89.00 | $44.99 | $59.00 | $130.00 | $130.00 | $131.99 | $180.00 |
| Price/mg | $1.28/mg | $3.70/mg | $4.00/mg | $5.20/mg | $5.56/mg | $6.38/mg | $7.90/mg | $8.00/mg | $8.00/mg | $8.00/mg | $8.90/mg | $9.00/mg | $11.80/mg | $13.00/mg | $13.00/mg | $13.20/mg | $18.00/mg |
| Price change | 0% (16d) | 0% (10d) | 0% (10d) | 0% (10d) | 0% (10d) | 0% (10d) | 0% (10d) | 0% (10d) | 0% (16d) | 0% (10d) | 0% (10d) | 0% (10d) | 0% (10d) | 0% (10d) | 0% (16d) | 0% (16d) | 0% (16d) |
| Stock | In stock | In stock | In stock | In stock | In stock | In stock | In stock | Out of stock | In stock | Out of stock | In stock | In stock | Out of stock | In stock | In stock | In stock | In stock |
| Shipping | 3–5 days | Reliable US shipping | Same-day US shipping | Same-day dispatch before 1PM PST | Same or next-day shipping | 2–3 days | Same or next-day shipping | UPS 2nd Day Air | 2–5 days | Same-day dispatch before 12PM CT | Same-day dispatch before 12PM EST | UPS 2-Day | US shipping | Same/next-day dispatch | Same-day dispatch | 5–7 days | 5–7 days |
| Reviews | 2.6(12) | 5.0(3) | 4.7(31) | — | 4.2(46) | 5.0(22) | 4.2(46) | 5.0(6) | 4.8(271) | 4.6(63) | 5.0(1) | 4.8(75) | 5.0(9) | 1.0(4) | 4.9(15) | 4.3(159) | 4.3(159) |
| Purity | 99% | 99.99% | 99% | 99% | — | 99% | — | 99% | 99.39% | — | — | 99% | 99% | 99% | 99% | 99% | 99% |
| COA | — | — | — | — | — | — | — | — | — | ||||||||
| Bulk discount | — | — | — | — | — | — | — | — | — | 10% off (3+) | — | — | — | — | — | — | — |
