Is Thymalfasin the same as thymosin alpha 1?
Yes. Thymalfasin is the generic name listed as another name on this site's thymosin alpha-1 profile, along with Zadaxin. It names the same immune-adjusting peptide from the thymus, with a molecular weight of 3,108 daltons. The findings in people on that page are the 1,106-person TESTS sepsis study and a 98-person hepatitis B study. Zadaxin is the brand approved in more than 30 countries. A research-chemical vial labeled thymosin alpha-1 is not that labeled product. The names are aliases of one molecule. This site does not rank brands. Full record at /compounds/thymosin-alpha-1.
Studies in people from the compound pages this answer belongs to
- Thymosin Alpha-1
- Efficacy of thymosin alpha1 in patients with chronic hepatitis B: a randomized, controlled trial 1998 PMID 9581695
- The efficacy and safety of thymosin alpha 1 for sepsis (TESTS): multicentre, double blinded, randomised, placebo controlled, phase 3 trial 2025 PMID 39814420
- The efficacy of thymosin alpha 1 for severe sepsis (ETASS): a multicenter, single-blind, randomized and controlled trial 2013 PMID 23327199
Educational use only. This database summarizes published research and is not medical advice. Where a dose appears it is a record of what a trial or clinic ran, or what people describe doing, with its source attached. Nothing here is a recommendation for personal use.
Part of immune and longevity peptides. Thymosin alpha-1, thymalin, epitalon, MOTS-c, humanin, and the bioregulator family.