Immune Modulator

Thymosin Alpha-1

Also known as: Thymalfasin (trade name Zadaxin)

Thymosin Alpha-1 (Ta1) is a 28-amino-acid thymic peptide (Ac-SDAAVDTSSEITTKDLKEKKEVVEEAEN) approved as Zadaxin in 35+ countries for chronic hepatitis B/C and as an immune adjuvant. It is NOT FDA-approved in the US.

Vendors carrying Thymosin Alpha-1

0 listings, ranked by trust score

Each row is a (vendor, peptide) pair. Click through for the listing detail, the vendor's full trust profile, and any COAs they've published.

No vendors carrying this peptide are indexed yet.

Independent evidence

COAs for Thymosin Alpha-1

52 third-party tests across 15 vendors. Each card links to the full report.

All 52 COAs for Thymosin Alpha-1 →
99.57 %
May 2026
Janoshik Analytical · HPLC

For

Thymosin Alpha-1

by Skye Peptides· batch TA126-10-001

99.58 %
Apr 2026
Freedom Diagnostics · HPLC

For

Thymosin Alpha-1

by Peptide Supply Co.· batch TA1004132026

99.00 %
Apr 2026
Ethos Analytics · HPLC

For

Thymosin Alpha-1

by OROS Research· batch OR-LPTA5-326-B1

99.81 %
Apr 2026
Janoshik Analytical · HPLC

For

Thymosin

by Verified Peptides· batch cmojb57q300trkirxximley58

99.91 %
Apr 2026
Biogenica Labs · HPLC

For

Thymosin Alpha-1

by Amino Club· batch THA0001

99.75 %
Mar 2026
Janoshik Analytical · HPLC

For

Thymosin Alpha-1

by Profound Aminos· batch cmojb89io01hzkirx1zv5axqw

99.39 %
Mar 2026
Janoshik Analytical · HPLC

For

Thymosin Alpha-1

by Verified Peptides· batch TA032608106

99.95 %
Feb 2026
Kovera Labs · HPLC

For

Thymosin Alpha-1

by Peptide Partners· batch TA202602

99.68 %
Feb 2026
Kovera Labs · HPLC

For

Thymosin Alpha-1

by Glacier Aminos· batch TA10GA-03

99.51 %
Feb 2026
Freedom Diagnostics · HPLC

For

Thymosin Alpha-1

by Crush Research· batch CR-TAT10-0212-1

99.44 %
Feb 2026
Freedom Diagnostics · HPLC

For

Thymosin Alpha-1

by Peptide Supply Co.· batch PSCTA110001

99.83 %
Feb 2026
BioRegen · HPLC

For

Thymoген

by BioLongevity Labs· batch 44-3-46035

99.74 %
Jan 2026
Freedom Diagnostics · HPLC

For

Thymosin Alpha-1

by MedGe Peptides· batch TAL10LT12

99.74 %
Jan 2026
Freedom Diagnostics · HPLC

For

Thymosin Alpha-1

by MedGe Peptides· batch TAL10LT12

99.69 %
Jan 2026
Freedom Diagnostics · HPLC

For

Thymosin Alpha-1

by Simple Peptide· batch TIMAG10/2026-J

99.70 %
Dec 2025
Freedom Diagnostics · HPLC

For

Thymosin Alpha-1

by Glacier Aminos· batch TA10GA02

99.76 %
Nov 2025
Janoshik Analytical · HPLC

For

Thymosin Alpha-1

by Verified Peptides· batch 12-25-0710F

99.91 %
Nov 2025
BioRegen · HPLC

For

Thymosin Alpha-1

by BioLongevity Labs· batch 30-3-45965

99.16 %
Nov 2025
Janoshik Analytical · HPLC

For

Thymosin Alpha-1

by Hydro Research Peptides· batch HYDR06S1HTG1

99.42 %
Nov 2025
Janoshik Analytical · HPLC

For

Thymosin

by Verified Peptides· batch 66552A

99.67 %
Nov 2025
Chromate · HPLC

For

Thymosin α1

by Mile High Compounds· batch TA1-010-MH-01

99.77 %
Nov 2025
Freedom Diagnostics · HPLC

For

Thymosin Alpha-1

by Glacier Aminos· batch TA10GA01

99.47 %
Oct 2025
Freedom Diagnostics · HPLC

For

Thymosin Alpha-1

by Simple Peptide· batch TA1101028202S-01

99.90 %
Oct 2025
BioRegen · HPLC

For

Thymosin Alpha-1

by BioLongevity Labs· batch 30-3-45937