Immune support
Thymosin Alpha-1
A synthetic thymus peptide approved in several countries (as Zadaxin) to support the immune system, for example in hepatitis B.
How it works
A thymus peptide that strengthens T cells and dendritic cells, the parts of the immune system that recognize and attack infections.
What it is used for
Hepatitis B and C, boosting the response to vaccines, and as an add-on in sepsis and cancer research.
What the evidence says
It is approved in more than 30 countries. Trials in hepatitis and sepsis have shown mixed results.
Side effects and cautions
Well tolerated. Irritation at the injection site is the most common effect.
Half-life
About 2 hours (label)
Makes sense for
- Immune support, for example in hepatitis B or with vaccines
Does not make sense for
- Organ transplant recipients
- Autoimmune disease
Boost the effect
- Vitamin D and zinc in the normal range: support immune function
- Sleep and stress control: the immune system recovers during sleep