Thymosin Alpha-1 10 mg vial
- Alpha Peps$55Listed priceCOA tested Feb 22, 2026
- EZ Peptides$58Listed price · deal not verifiedCOA tested Jun 17, 2026
- Voltera Sciences$59.99Listed price · deal not verifiedCOA tested May 8, 2026
Thymosin alpha-1, also called thymalfasin, is a peptide studied for immune-modulating effects in infection, oncology, and immune-response settings.
Also known as ta-1 · ta1 · thymalin · thymosin alpha · thymosin alpha 1 · thymosin alpha one
Current picks · Nov 14, 2026
Up to three of the lowest effective prices per exact product among vendors that passed the trust floor, were in stock and checked within 72 hours, and have a COA on file for that product and strength tested within 12 months. Affiliate relationships never affect picks or their order.
Same format. Same amount.
2 of 4 exact products have at least one pick. Vendor counts reflect the current price observations. Testing records for every vendor and strength: Thymosin Alpha-1 COAs →
Historical market context
Historical market low and median per mg across recorded offers. These market summaries are separate from our exact-product comparisons.
History updated Sep 21, 2026. Vendor coverage, package sizes, product forms and promotions can vary over time. Use exact-product comparisons for current listed prices; historical market prices do not establish vendor trust.
| Date | Low /mg | Median /mg | Vendors | Offers |
|---|---|---|---|---|
| $1.77 | $6.97 | 70 | 96 | |
| $1.97 | $7.16 | 69 | 90 | |
| $3.24 | $6.90 | 49 | 66 | |
| $0.63 | $6.43 | 29 | 49 |
What it is
PubChem identifies thymalfasin as a polypeptide. It is distinct from thymosin beta-4 and products sold as TB-500 despite the shared thymosin name.
This label describes the available research record, not whether the compound is safe or effective for an individual.
Research context
The bounded search found PubMed and registered-study records in immune and oncology settings. Indications, combination treatments, and jurisdictional status vary; these records do not support a general immune-boosting claim.
Search indexed research for this compound ↗Market context
Thymosin Alpha-1 is commonly sold or discussed for immune response and inflammation research. That describes market demand, not proof that the compound is safe or effective.
Market demand and online discussion do not establish product quality, safety, or effectiveness.Vendor directory
Grades describe the vendor record overall, not a test of every product. Lowest prices are effective single-package prices across formats; open a comparison for the exact product.
| Vendor | Grade | Offers | In stock | Lowest effective package |
|---|---|---|---|---|
| EZ Peptides | Grade A- | 1 | 1 | $58 · 10 mg vialObserved Nov 14, 2026 |
| Peptide Plugs | Grade A- | 1 | 1 | $60 · 10 mg vialObserved Nov 14, 2026 |
| Polaris Peptides | Grade A- | 1 | 1 | $65 · 10 mg vialObserved Nov 14, 2026 |
| Ascension Peptides | Grade A- | 1 | 1 | $71 · 10 mg vialObserved Nov 14, 2026 |
| Forge Performance Co | Grade A- | 1 | 1 | $60 · 10 mg vialEarlier observation Sep 27, 2026 |
| Evolve Peptides | Grade A- | 1 | 1 | $53.90 · 5 mg vialObserved Nov 14, 2026 |
| GenPeptide | Grade A- | 1 | 1 | $50 · 10 mg vialEarlier observation Oct 20, 2026 |
| Orbitrex Peptides | Grade A- | 1 | 0 | $69.99 · 10 mg vialObserved Nov 14, 2026 · out of stock |
| Puratek Peptides | Grade A- | 1 | 1 | $59.95 · 10 mg vialObserved Nov 14, 2026 |
| Southern Aminos | Grade A- | 1 | 1 | $41.25 · 10 mg vialEarlier observation Nov 2, 2026 |
| Bulk Peptide Supply | Grade B+ | 2 | 2 | $25 · 10 mg vialObserved Nov 14, 2026 |
| Voltera Sciences | Grade B+ | 1 | 1 | $59.99 · 10 mg vialObserved Nov 14, 2026 |
| Ameano Peptides | Grade B+ | 2 | 2 | $35 · 5 mg vialObserved Nov 14, 2026 |
| Glacier Aminos | Grade B+ | 1 | 1 | $63.99 · 10 mg vialObserved Nov 14, 2026 |
| Alpha Peps | Grade B+ | 2 | 2 | $40 · 5 mg vialObserved Nov 14, 2026 |
| Alpha Pro Peptides | Grade B+ | 2 | 2 | $25 · 5 mg vialObserved Nov 14, 2026 |
| Peptide Crafters | Grade B+ | 1 | 1 | $65 · 10 mg vialEarlier observation Nov 1, 2026 |
| Oasis Peptides | Grade B+ | 1 | 1 | $65 · 10 mg vialObserved Nov 14, 2026 |
| Oros Research | Grade B+ | 1 | 1 | $39.99 · 5 mg vialEarlier observation Oct 29, 2026 |
| RIVN Peptides | Grade B+ | 1 | 1 | $22 · 10 mg vialObserved Nov 14, 2026 |
| Simple Peptide | Grade B | 1 | 1 | $86 · 10 mg vialEarlier observation Sep 27, 2026 |
| Biolongevity Labs | Grade B | 1 | 1 | $129.97 · 10 mg vialObserved Nov 14, 2026 |
| Paramount Peptides | Grade B | 1 | 1 | $97.75 · 10 mg vialObserved Nov 14, 2026 |
| RUO | Grade B | 1 | 1 | $42 · 5 mg vialObserved Nov 14, 2026 |
| NuLife Peptides | Grade B | 1 | 1 | $60 · 10 mg vialEarlier observation Oct 17, 2026 |
| Amino Amigos | Grade B+ | 1 | 1 | $75 · 10 mg vialEarlier observation Nov 13, 2026 |
| NextechLabs | Grade C | 1 | 1 | $65 · 10 mg vialEarlier observation Oct 4, 2026 |
| AIO Peptides | Not graded | 1 | 1 | $44 · 5 mg vialObserved Nov 14, 2026 |
| Nova Life Peptides | Not graded | 1 | 1 | $75 · 10 mg vialObserved Nov 14, 2026 |
| Nuscience Peptides | Not graded | 1 | 1 | $59.99 · 10 mg vialObserved Nov 14, 2026 |
| Pharma Grade Peptides | Not graded | 1 | 1 | $99.99 · 10 mg vialObserved Nov 14, 2026 |
| Pure Peptides | Not graded | 2 | 2 | $80 · 10 mg vialObserved Nov 14, 2026 |
| Skye Peptides | Not graded | 1 | 1 | $79 · 10 mg vialObserved Nov 14, 2026 |
| Tydes | Not graded | 1 | 1 | $74.99 · 10 mg vialObserved Nov 14, 2026 |
27 tracked vendors list Thymosin Alpha-1 without a current offer: Nura Peptide (Grade A-), Panda Peptides (Grade B+), Peptide Partners (Grade B+), Core Peptides (Grade B+), Licensed Peptides (Grade B+), SaiyanMed (Grade B+), TCore Biotech (Grade B), Coffee and Peppers (Grade B), Ion Peptides (Grade B), Chameleon Peptides (Grade B), Eternal Peptides (Grade B), Premier Bio Labs (Grade A-), Nationwide Peptides (Grade B+), NextGen Peptides (Grade B), Blank Peptides (Grade B), Royal Peptides (Grade B), Vital Core Research (Grade B), Mile High Compounds (Grade B), Peptidology (Grade C), Oath Research (Grade C), Swiss Chems (Grade C), American Peptide Research (Not graded), Atomik Labz (Not graded), Longevity Peptides (Not graded), Northline Labs (Not graded), Planet Peptide (Not graded), Pura Peptides (Not graded).
Sources and review
Last editorial review: Aug 30, 2026. Sources support the compound guide only and do not affect vendor grades.