Price Comparison
Thymosin Alpha-1
Cellular Peptide
53 of 53 vendors
| Vendor | Price | 10mg cost | Updated | Actions |
|---|---|---|---|---|
| Amino Club 10/10 COA ✓Ships: US + internationalVisa · American Express Verification & shipping10/10 COA ✓Ships: US + internationalVisa · American Express | $25.99 | $25.99Checked aug 7, 2026 | Aug 7, 2026 | Buy Thymosin Alpha-1 from Amino Club |
| Rivn Peptides 9/10 COA ✓Ships: USVisa · Mastercard Verification & shipping9/10 COA ✓Ships: USVisa · Mastercard | $33.99 | $33.99Checked aug 14, 2026 | Aug 14, 2026 | Buy Thymosin Alpha-1 from Rivn Peptides |
| PS Peptides 9/10 COA ✓Ships: US + internationalCredit/debit card · Afterpay Verification & shipping9/10 COA ✓Ships: US + internationalCredit/debit card · Afterpay | $35.99 | $35.99Checked aug 10, 2026 | Aug 10, 2026 | Buy Thymosin Alpha-1 from PS Peptides |
| Ascension Peptides 8.5/10 COA ✓Ships: USVisa · ACH bank draft Verification & shipping8.5/10 COA ✓Ships: USVisa · ACH bank draft | $37.50 | $37.50Checked apr 16, 2026 | Apr 16, 2026 | Buy Thymosin Alpha-1 from Ascension Peptides |
| Step One Ventures 8/10 COA ✓Ships: USCredit/debit card · Zelle Verification & shipping8/10 COA ✓Ships: USCredit/debit card · Zelle | $39.60 | $39.60Checked jul 22, 2026 | Jul 22, 2026 | Buy Thymosin Alpha-1 from Step One Ventures |
| Optimum Formula 8.5/10 COA ✓Ships: USCredit/debit card · Cryptocurrency Verification & shipping8.5/10 COA ✓Ships: USCredit/debit card · Cryptocurrency | $40.49 | $40.49Checked may 14, 2026 | May 14, 2026 | Buy Thymosin Alpha-1 from Optimum Formula |
Research details
Thymosin Alpha-1 — research data
Half-life~2 hours. Twice-weekly dosing for standard protocols.
Regulatory statusApproved in 30+ countries
NCAA D1Not listed
Overview
About Thymosin Alpha-1
Mechanism of action
Endogenous peptide derived from thymosin fraction 5; modulates T-cell differentiation and maturation; upregulates MHC class I expression; stimulates dendritic cells; potentiates NK cell activity.
Safety profile
Very well-tolerated. Injection site reactions; rare flu-like symptoms. Decades of safety data. · 11,000+ patients in 30+ trials; well-tolerated; approved as Zadaxin globally; excellent safety record
Storage
Stability & handling
Lyophilized (powder)2–8°Cstable long-term
Reconstituted2–8°Cwithin 30 days
Related pages
More on Thymosin Alpha-1
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Research
Studies & key findings
- Endogenous 28-amino-acid peptide derived from prothymosin α; approved (Zadaxin) in 35+ countries for chronic hepatitis B, hepatitis C, and as an adjuvant in cancer immunotherapy.
- Phase 3 RCT in chronic HBV (1998) showed thymosin α1 plus interferon-α produced significantly higher seroconversion rates than interferon alone.