Peptide GradingKey benefits
- Approved outside the US for hepatitis B
- Supports T-cell immune activity
- Studied as an add-on to vaccines and cancer care
Regulatory activity
Phase III / NDA Filed
Late-stage human trials
Route
Subcutaneous
Often studied away from meals; timing varies by protocol.
Cycle
Varies by study
Typical duration
Storage
-20°C lyophilized · 2–8°C once reconstituted
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Marketplace
Compare all Thymosin Alpha-1 vendors
Prices per size, coupon codes, lab reports and shipping.
| Vendor | Price | Coupon | Lab test | Shipping | |
|---|---|---|---|---|---|
StudzPeptides 10 mg | $42.99 Lowest price$4.30/mg | Not on file | 2-3 days
| Buy | |
$49.99 $10.00/mg | No code | 2 COAs | 3–5 days
| Buy | |
 Evolve Peptides 5 mg | $53.90 $10.78/mg | Not on file | 2-5 business days
| Buy | |
Peptide Confidential 10 mg | $55.00 $5.50/mg | Not on file | 1–3 business days
| Buy | |
 Vantage Aminos 5 mg | $55.00 $11.00/mg | Not on file | 2-days
| Buy | |
 Pure Peptides 5 mg | $63.00 $12.60/mg | Not on file | 2–3 days
| Buy | |
$65.00 $6.50/mg | Not on file | 1-3 days
| Buy | ||
Nura Peptide 10 mg | $65.00 $6.50/mg | Not on file | 2 days
| Buy |
United States
Canada- No codeBuy
What the research reports
Research Benefits of Thymosin Alpha-1
What published research has reported so far. These are research findings, not promised results.
Approved outside the US for hepatitis B
Supports T-cell immune activity
Studied as an add-on to vaccines and cancer care
What the evidence shows
Thymosin Alpha-1 has been through many human clinical trials and is approved in a number of countries, under the brand name Zadaxin, mainly for chronic hepatitis B. It is not approved by the FDA in the US, and results in other conditions have been mixed.
Safety and regulatory position
Approved outside the US · not FDA approvedAs thymalfasin, it is approved as a prescription medicine in several countries and has a long record of use in clinical settings. It is not FDA approved, and research-grade vials sold by vendors are not the same as the regulated medicine.
FAQ
Frequently asked questions.
Thymalfasin is the drug name for synthetic Thymosin Alpha-1. It is sold as Zadaxin in countries where it is approved.