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Thymalin
Also known as thymus extract peptide, Timalin.
Best known for The Russian thymus bioregulator
Evidence★☆☆☆☆
Safety dataLargely unknown
Route Injectable
United StatesNot approved
AustraliaNot listed by name; unapproved therapeutic good
as at 16 September 2026
What it is
Thymalin is a peptide preparation derived from calf thymus, developed in the Soviet Union alongside Epitalon as part of the bioregulator research programme. It is registered as a medicine in Russia.
What the full entry covers
The book carries the rest of this entry:
- Where the research stands, with every claim cited
- What people commonly ask, and what the research shows so far
- Dosing in four labelled bands, described and not recommended
- Side effects, serious risks, cautions and interactions
- Questions to discuss with your doctor
- How it compares with Epitalon, Thymulin, Thymosin Alpha-1, Vilon
Related entries
A certificate of analysis tells you what is in a vial. The evidence rating above tells you whether the compound has been shown to work in humans. Neither answers the other's question. How to read a certificate of analysis.
This page describes what is known and not known about Thymalin. It is not medical advice and not a recommendation to use it.