Thymosin Alpha-1 price per mg, by vendor
82 listings from 61 vendors, refreshed Oct 15, 2026.
$2.00/mg
Lowest, in a multi-vial pack
$6.50/mg
Median
$21.00/mg
Highest
$4.00/mg
Lowest from a vendor with public batch COAs
How much does Thymosin Alpha-1 cost?
- Prices run from $2.00/mg to $21.00/mg across 61 vendors, a 10.5× spread. The median listing is $6.50/mg.
- The most common size is 10 mg (47 listings): $25 to $180 per vial, median $65.
- The cheapest in-stock listing from a vendor we rank is $2.00/mg from Bulk Peptide Wholesale (transparency 45/100), as a pack: 10 mg × 10 for $200. The cheapest single vial is $2.50/mg: 10 mg for $25 from Bulk Peptide Supply.
- 19 of 61 vendors publish batch-specific COAs for their products. Vendors that publish batch COAs charge a median $7.00/mg (19 vendors), 8% more than those that don't ($6.50/mg, 42 vendors).
Where to buy Thymosin Alpha-1: lowest prices from the most transparent vendors
The cheapest in-stock Thymosin Alpha-1 from vendors that publish batch-specific certificates of analysis (COAs), by price per mg, leaving out vendors with red flags or a warning letter, lawsuit or seizure in the past three years (why).
| # | Vendor | Transparency | Best listing | $/mg | Vendor's page |
|---|---|---|---|---|---|
| 1 | Evolve BioPep | 83 | 10 mg for $40 | $4.00/mg | View |
| 2 | GenPeptide | 68 | 10 mg for $50 | $5.00/mg | View |
| 3 | Alpha Peps | 78 | 10 mg for $55 | $5.50/mg | View |
| 4 | EZ Peptides | 75 | 10 mg for $60 | $6.00/mg | View |
| 5 | Voltera Sciences | 60 | 10 mg for $60 | $6.00/mg | View |
| 6 | Peptide Maxxing | 40 | 10 mg for $60 | $6.00/mg | View |
| 7 | Hydro Research | 80 | 10 mg for $65 | $6.50/mg | View |
| 8 | Orbitrex Peptides | 73 | 10 mg for $70 | $7.00/mg | View |
Thymosin Alpha-1 price by vial size
| Vial size | Listings | Lowest | Median | Highest | Median $/mg |
|---|---|---|---|---|---|
| 5 mg | 19 | $20 | $55 | $105 | $10.99/mg |
| 10 mg | 47 | $25 | $65 | $180 | $6.50/mg |
Single vials only; multi-vial packs are in the full table below. Sizes with at least two listings.
All Thymosin Alpha-1 listings
| Vendor | Transparency | Product | Size | Price | $/mg | Stock | Vendor's page |
|---|---|---|---|---|---|---|---|
| Bulk Peptide Wholesale | 45 | 10 mg × 10 | $200 | $2.00/mg | View | ||
| Chimera Peptides | 27 | 10 mg × 10 | $200 | $2.00/mg | View | ||
| Chimera Peptides | 27 | 5 mg × 10 | $116 | $2.32/mg | View | ||
| Bulk Peptide Supply | 57 | 10 mg | $25 | $2.50/mg | View | ||
| Nexaph | 45 | 10 mg × 10 | $288 | $2.88/mg | View | ||
| Crush Research | 10 | 10 mg × 10 | $289 | $2.89/mg | View | ||
| Iron Aminos | 40 | 10 mg × 10 | $297 | $2.97/mg | View | ||
| Crush Research | 10 | 10 mg × 5 | $159 | $3.18/mg | View | ||
| Reta One Labs | 55 | 10 mg | $32 | $3.20/mg | View | ||
| Iron Aminos | 40 | 5 mg × 10 | $170 | $3.40/mg | View | ||
| Iron Aminos | 40 | 10 mg | $35 | $3.50/mg | View | ||
| Crush Research | 10 | 10 mg × 3 | $109 | $3.63/mg | View | ||
| S1 Research | 50 | 10 mg | $39 | $3.85/mg | View | ||
| Crush Research | 10 | 10 mg | $39 | $3.90/mg | View | ||
| Iron Aminos | 40 | 5 mg | $20 | $4.00/mg | View | ||
| Evolve BioPep | 83 | 10 mg | $40 | $4.00/mg | View | ||
| Welli Labs | 10 | 10 mg | $40 | $4.00/mg | View | ||
| Bulk Peptide Supply | 57 | 10 mg × 10 | $400 | $4.00/mg | View | ||
| PurePeps | 35 | THYMOSIN ALPHA-1 10pk · Label: Unlabelled, Strength: 5mg | 5 mg × 10 | A$310 | $4.35/mg | Out of stock | View |
| PurePeps | 35 | THYMOSIN ALPHA-1 10pk · Label: Unlabelled, Strength: 10mg | 10 mg × 10 | A$620 | $4.35/mg | Out of stock | View |
| Royal Peptides FDA warning letter, Aug 2026 | 52 | Thymosin Alpha 10mgx10vials | 10 mg × 10 | $450 | $4.50/mg | View | |
| PS Peptides | 22 | Thymosin Alpha-1 (1 Vial) – Subscription | 10 mg | $49 | $4.95/mg | View | |
| Rhome Research | 55 | 10 mg | $50 | $5.00/mg | View | ||
| GenPeptide | 68 | 10 mg | $50 | $5.00/mg | View | ||
| Modern Research Peptides | 10 | 10 mg | $53 | $5.33/mg | View | ||
| Alpha Peps | 78 | 10 mg | $55 | $5.50/mg | View | ||
| Lux Synth Aminos | 28 | 10 mg | $55 | $5.50/mg | View | ||
| Volta Peptides | 70 | 10 mg | $57 | $5.70/mg | Out of stock | View | |
| EZ Peptides | 75 | 10 mg | $60 | $6.00/mg | View | ||
| Voltera Sciences | 60 | 10 mg | $60 | $6.00/mg | View | ||
| NuLife Peptides | 10 | 10 mg | $60 | $6.00/mg | View | ||
| Peptide Maxxing | 40 | 10 mg | $60 | $6.00/mg | View | ||
| Peptide Plugs | 57 | 10 mg | $60 | $6.00/mg | View | ||
| Southern Aminos | 10 | 10 mg | $60 | $6.00/mg | View | ||
| Peptides Warehouse | 62 | 5 mg | $31 | $6.12/mg | View | ||
| PX Peptides | 5 | 10 mg | $64 | $6.37/mg | Out of stock | View | |
| Apex Amino | 55 | 10 mg | $65 | $6.50/mg | View | ||
| Hydro Research | 80 | 10 mg | $65 | $6.50/mg | View | ||
| Ion Peptide | 25 | 10 mg | $65 | $6.50/mg | View | ||
| Legendary Peptides Lawsuit, Aug 2026 | 90 | 10 mg | $65 | $6.50/mg | View | ||
| Oasis Labs | 60 | 10 mg | $65 | $6.50/mg | View | ||
| Peptide Crafters | 27 | 10 mg | $65 | $6.50/mg | View | ||
| Polaris Peptides | 45 | 10 mg | $65 | $6.50/mg | View | ||
| Peptides World | 80 | 10 mg | $70 | $6.99/mg | View | ||
| Orbitrex Peptides | 73 | 10 mg | $70 | $7.00/mg | View | ||
| PurePeps | 35 | 10 mg | A$100 | $7.01/mg | Out of stock | View | |
| PurePeps | 35 | 5 mg | A$50 | $7.01/mg | View | ||
| Licensed Peptides | 62 | 5 mg × 10 | $360 | $7.20/mg | Out of stock | View | |
| Modern Research Peptides | 10 | 5 mg | $37 | $7.40/mg | Out of stock | View | |
| Certified Peptides | 60 | 10 mg | $78 | $7.80/mg | View | ||
| OROS Research | 55 | 5 mg | $40 | $8.00/mg | View | ||
| Alpha Peps | 78 | Thymosin Alpha-1 5mg Research Peptide â Lyophilized Vial | For Laboratory Research Use Only | 5 mg | $40 | $8.00/mg | View | |
| Modern Aminos | 77 | 10 mg | $80 | $8.00/mg | View | ||
| AIO Peptides | 52 | 5 mg | $41 | $8.25/mg | View | ||
| Ion Peptide | 25 | 5 mg | $42 | $8.40/mg | View | ||
| Strand Bio | 30 | 10 mg | $89 | $8.90/mg | View | ||
| True Form Peptides | 67 | Thymosin Alpha-1 (Tα1) 10mg | 10 mg | $90 | $9.00/mg | View | |
| Peptide Labs | 65 | 10 mg | $90 | $9.00/mg | View | ||
| Go Alpha Labs | 83 | 5 mg × 10 | $450 | $9.00/mg | View | ||
| Evolve Peptides | 60 | 10 mg | $95 | $9.50/mg | View | ||
| Nationwide Peptides | 85 | 10 mg | $96 | $9.60/mg | Out of stock | View | |
| Paramount Peptides | 65 | 10 mg | $98 | $9.78/mg | View | ||
| ANKR Lab | 73 | 10 mg | $99 | $9.90/mg | View | ||
| Protide Health | 75 | 10 mg | $105 | $10.50/mg | View | ||
| Receptor Chem | 62 | 5 mg | £40 | $10.61/mg | View | ||
| Pure Peptide Labs | 90 | 5 mg | $55 | $10.99/mg | View | ||
| Royal Peptides FDA warning letter, Aug 2026 | 52 | 5 mg | $55 | $11.00/mg | Out of stock | View | |
| Go Alpha Labs | 83 | 5 mg | $60 | $12.00/mg | View | ||
| Pure Lab Peptides | 82 | 10 mg | $120 | $12.00/mg | Out of stock | View | |
| Evolve Peptides | 60 | 5 mg | $60 | $12.00/mg | View | ||
| Masters Peptides | 22 | 10 mg | $120 | $12.00/mg | View | ||
| Alpha Gen | 55 | 5 mg | $61 | $12.16/mg | View | ||
| American Peptides | 47 | 10 mg | $125 | $12.50/mg | View | ||
| Swiss Chems FDA warning letter, Dec 2024 | 72 | 5 mg × 10 | $640 | $12.80/mg | View | ||
| Swiss Chems FDA warning letter, Dec 2024 | 72 | 5 mg | $64 | $12.80/mg | View | ||
| BioLongevity Labs | 72 | 10 mg | $130 | $13.00/mg | View | ||
| BioInfinity Lab | 58 | 10 mg | $130 | $13.00/mg | View | ||
| Nationwide Peptides | 85 | 5 mg | $70 | $14.00/mg | View | ||
| Premier Bio Labs | 72 | 5 mg | $78 | $15.60/mg | View | ||
| Pure Lab Peptides | 82 | 5 mg | $80 | $16.00/mg | Out of stock | View | |
| Risynth Bio | 47 | 10 mg | $180 | $18.00/mg | View | ||
| Risynth Bio | 47 | 5 mg | $105 | $21.00/mg | View |
Transparency is our score out of 100 for how much a vendor makes public about itself. It isn't a purity test.
Before you compare on price alone
A low price is only a bargain if the vial holds what the label says, and a high one doesn't prove quality: only an independent lab test shows what's in a vial. Check the vendor's latest batch certificate of analysis (how to read one), and see our Thymosin Alpha-1 overview for what's known about the compound.
Is Thymosin Alpha-1 legal? Status by market
A summary of official sources, checked Oct 14, 2026. Not legal advice.
- United States
- Not FDA-approved; the nomination of thymosin alpha-1 for pharmacy (503A) compounding was withdrawn after FDA flagged potential safety risks [1][2].
- United Kingdom
- No UK-licensed medicine containing thymalfasin appears in the MHRA products database [3].
- European Union
- Authorized nationally in Italy as Zadaxin; there is no EU-wide authorization [4][5].
- Canada
- No product containing thymalfasin appears in Health Canada's Drug Product Database [6].
- Australia
- Thymosin alpha-1 is not named in Australia's Poisons Standard (October 2026) [7].
- Sport (WADA)
- Not named on the 2026 Prohibited List [8].
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Our data is free to reuse under CC BY 4.0. Please credit us with a link to this page.
Peptide Referee. (2026). Thymosin Alpha-1 price per mg, by vendor. Retrieved Oct 15, 2026, from https://peptidereferee.com/prices/thymosin-alpha-1/<a href="https://peptidereferee.com/prices/thymosin-alpha-1/">Thymosin Alpha-1 price per mg, by vendor</a> (Peptide Referee)