Thymosin Alpha-1
Also known as Ta1, Zadaxin
Immune-modulating peptide used clinically in some countries.
- Category
- healing
- Route
- subq
- Documented dose
- 1600–3200 mcg
- Typical frequency
- 2-3 times weekly
- Cycle
- 8 weeks on, 4 off
- Half-life
- ~2 hours
- Common vial sizes
- 5 mg, 10 mg
- Regulatory status
- Approved outside the US; unapproved in the US.
What it does
A peptide made naturally by the thymus gland that acts like a conductor for the immune system — waking up T cells and dendritic cells so the body responds properly to threats, while calming an over-reactive response. What people look into it for: • Immune support during chronic or recurring infections • Recovery in people who are run down or immunosuppressed • Chronic viral illness — it is used medically for hepatitis B and C in some countries • Balancing an immune system that is under- or over-reacting It is approved as Zadaxin in a number of countries and has a long safety record.
Mechanism
Enhances T-cell maturation and dendritic cell function via TLR signalling.
Storage — lyophilised
Refrigerate 2-8C, protect from light.
Storage — reconstituted
Refrigerate 2-8C, use within ~28 days.
Reconstitution notes
Add 2 ml bacteriostatic water to a 10 mg vial for 50 mcg per unit.
Commonly stacked with
- LL-37
Commonly reported side effects
- Injection-site reactions
- Transient flu-like symptoms
Contraindications noted
- Organ transplant recipients
- Autoimmune disease (caution)
- Pregnancy
Research notes
Approved in several countries as Zadaxin for hepatitis B.
Track this properly
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Reference information only, not medical advice. See our medical disclaimer.