Thymosin Alpha-1

Peptides

Updated : May 13, 2026

Class: Thymic Peptide / Immune Modulator

Thymosin Alpha-1 (Tα1) is a 28-amino acid peptide naturally produced by the thymus gland, where it plays a
central role in T-cell maturation, differentiation, and immune regulation. It is one of the most clinically studied
immunomodulatory peptides, with approval in over 35 countries for the treatment of hepatitis B, hepatitis C,
and various immune deficiencies. It is increasingly used in integrative medicine for immune optimization,
chronic infection, cancer adjunct therapy, and post-viral recovery.

Key Benefits

• Potent immune modulator — enhances T-cell and NK cell activity
• Approved in 35+ countries for viral hepatitis treatment
• Adjunct therapy in cancer — enhances response to chemotherapy
• Post-viral recovery support (including long COVID protocols)
• Anti-inflammatory and antioxidant properties

Standard Dosage Scheduled

Parameter

Details

Dose

1.6 mg subcutaneous injection

Frequency

Twice weekly (standard protocol); daily dosing for acute immune support

Administration

Subcutaneous injection

Cycle

4–12 weeks depending on indication

Note

Well-established safety profile with decades of clinical use

Thymosin Alpha-1

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