Thymosin Alpha-1 Prices
Also known as Thymalfasin; Zadaxin; TA1
58 listings from 38 vendors, normalised to one honest price per milligram.
Cheapest per mg
$1.20/mg
At
BeiBangAn
Vendors
38
Sizes
2mg, 3mg, 5mg, 5mg Kit (10 vials), 10mg, 10mg Kit (4 vials), 10mg Kit (10 vials), 12.5mg, 20mg, 50mg, 50mg Kit (10 vials), 100mg
Disclosure. Some vendors below are Peptul partners and pay us a commission when you buy through our link. Rows here are ordered by price per milligram only - paying us never moves a vendor up. Current discount codes are shown on the full price board.
Thymosin Alpha-1 price per mg by vendor
Prices last collected August 19, 2026.
| Vendor | Size | Price | Per mg | |
|---|---|---|---|---|
| BeiBangAnVerified COA | 10mg Kit (10 vials) | $120.00 | $1.20 | View |
| Swiss ChemsVerified COA | 50mg Kit (10 vials) | $639.90 | $1.28 | View |
| BeiBangAnVerified COA | 5mg Kit (10 vials) | $75.00 | $1.50 | View |
| Andy Peps Studio (APS)Verified COA | 10mg Kit (10 vials) | $160.00 | $1.60 | View |
| Huatai PeptideVerified COA | 10mg Kit (10 vials) | $165.00 | $1.65 | View |
| Hybiopeptides (HYB Peptides)Verified COA | 10mg Kit (10 vials) | $170.00 | $1.70 | View |
| Hybiopeptides (HYB Peptides)Verified COA | 5mg Kit (10 vials) | $115.00 | $2.30 | View |
| Huatai PeptideVerified COA | 5mg Kit (10 vials) | $121.00 | $2.42 | View |
| Peptide PartnersVerified COAShips US | 100mg | $370.00 | $3.70 | View |
| Peptide PartnersVerified COAShips US | 50mg | $210.00 | $4.20 | View |
| VPeptide CanadaVerified COA | 10mg Kit (10 vials) | $461.29 | $4.61 | View |
| Great Northern PeptidesVerified COA | 10mg | $46.85 | $4.69 | View |
| Pharma Lab Global CanadaVerified COA | 10mg Kit (4 vials) | $193.05 | $4.83 | View |
| Peptide PartnersVerified COAShips US | 20mg | $98.00 | $4.90 | View |
| Rhome ResearchVerified COAShips US | 10mg | $49.99 | $5.00 | View |
| Lux Synth AminosVerified COAShips US | 10mg | $55.00 | $5.50 | View |
| Pharma Lab Global CanadaVerified COA | 10mg | $56.78 | $5.68 | View |
| VPeptide CanadaVerified COA | 10mg | $57.65 | $5.76 | View |
| Peptide Shop Canada | 10mg | $57.95 | $5.79 | View |
| EZ PeptidesVerified COAShips US | 10mg | $58.00 | $5.80 | View |
| Behemoth LabzVerified COAShips US | 20mg | $118.97 | $5.95 | View |
| Luxara LabsVerified COA | 12.5mg | $79.28 | $6.34 | View |
| Red Leaf Research LabsVerified COA | 10mg | $63.43 | $6.34 | View |
| Peptide CraftersVerified COAShips US | 10mg | $65.00 | $6.50 | View |
| Behemoth LabzVerified COAShips US | 50mg | $326.04 | $6.52 | View |
| Behemoth LabzVerified COAShips US | 10mg | $65.48 | $6.55 | View |
| PeptidologyVerified COAShips US | 10mg | $69.99 | $7.00 | View |
| Ascension PeptidesPeptul partnerVerified COAShips US | 10mg | $71.00 | $7.10 | View |
| Black Helix Labs | 5mg | $36.04 | $7.21 | View |
| Eternal PeptidesVerified COAShips US | 10mg | $74.99 | $7.50 | View |
| Certified PeptidesVerified COAShips US | 10mg | $78.00 | $7.80 | View |
| Modern AminosVerified COAShips US | 10mg | $80.00 | $8.00 | View |
| Verified PeptidesVerified COAShips US | 10mg | $80.00 | $8.00 | View |
| Modern AminosVerified COAShips USOut of stock | 5mg | $41.00 | $8.20 | View |
| SimplePeptideVerified COAShips US | 10mg | $86.00 | $8.60 | View |
| Xcel PeptidesVerified COAShips US | 10mg | $89.00 | $8.90 | View |
| AminoVaultPeptul partnerVerified COAShips US | 10mg | $89.25 | $8.93 | View |
| Paramount PeptidesVerified COAShips US | 10mg | $97.75 | $9.78 | View |
| Protide HealthVerified COAShips US | 10mg | $105.00 | $10.50 | View |
| Royal PeptidesPeptul partnerVerified COAShips US | 5mg | $55.00 | $11.00 | View |
| Umbrella LabsVerified COAShips US | 10mg | $119.99 | $12.00 | View |
| Raw AminoVerified COAShips US | 10mg | $120.00 | $12.00 | View |
| Toronto PeptidesVerified COA | 10mg | $125.00 | $12.50 | View |
| Swiss ChemsVerified COA | 5mg | $63.99 | $12.80 | View |
| BioLongevity LabsPeptul partnerVerified COAShips US | 10mg | $129.97 | $13.00 | View |
| Umbrella LabsVerified COAShips US | 5mg | $64.99 | $13.00 | View |
| Biotech PeptidesVerified COAShips US | 10mg | $130.00 | $13.00 | View |
| Raw AminoVerified COAShips US | 5mg | $69.00 | $13.80 | View |
| GenX PeptidesPeptul partnerVerified COAShips US | 3mg | $44.00 | $14.67 | View |
| Cocer PeptidesVerified COAShips US | 10mg | $149.00 | $14.90 | View |
| Toronto PeptidesVerified COA | 5mg | $79.00 | $15.80 | View |
| Huaian Hanyou PeptideVerified COA | 5mg | $81.00 | $16.20 | View |
| Cocer PeptidesVerified COAShips US | 5mg | $81.00 | $16.20 | View |
| Behemoth LabzVerified COAShips US | 5mg | $84.86 | $16.97 | View |
| Umbrella LabsVerified COAShips US | 2mg | $44.99 | $22.50 | View |
About Thymosin Alpha-1
- What it is
- Thymosin alpha-1, sold as Zadaxin and known generically as thymalfasin, is a 28 amino acid peptide that occurs naturally in the thymus gland. It acts as an immune modulator, strengthening T cell function and influencing innate and adaptive immunity, partly through toll-like receptor signaling. It is approved in many countries for hepatitis B and C and as an immune adjuvant, but it is not approved by the FDA in the United States.
- How it works
- It enhances T cell maturation and function and modulates immune signaling, including toll-like receptor pathways.
- Researched for
- Hepatitis B; hepatitis C; immune support; cancer adjunct; vaccine adjuvant
- Half-life
- Approximately 2 hours
- Familiarity
- Intermediate
- Research evidence
- Human trials - phase 2 or 3
- Regulatory status
- Approved
- Key risk
- None documented
For educational and research purposes only. Not medical advice. Always consult a qualified healthcare provider before using any research compound.