Thymalin

Limited evidence
ClassThymic peptide bioregulator
Research statusApproved in Russia; unapproved elsewhere
Independent tests1
Studies indexed3
Companies tested 1

Overview

A thymic peptide extract used in Russian clinical practice, with a literature that is largely untranslated and hard to appraise.

Thymalin is classified as a thymic peptide bioregulator. Its current development status is: approved in russia; unapproved elsewhere. The published evidence is thin, largely non-independent, or does not address the uses this compound is marketed for.

The Peptide Institute tracks Thymalin because it is actively sold through research-compound and telehealth channels. Our interest is narrow and specific: what is actually in the vial, whether the label is accurate, and whether the sellers of it can document what they claim. We take no position on whether anyone should use it.

Independent Testing

Independently tested companies that sell Thymalin

Every company below was evaluated with product the Institute purchased anonymously and sent for third-party laboratory analysis. Ranked by Index Score™.

Companies
1
Samples
1
Updated
Mar 24, 2025
  1. 1 PureSci Labs Excellent Institute
    Top Rated     Thymalin

    99% average purity across 1 sample

    Purity & Testing 99 Transparency 95 Samples 1 89 View company
See the full testing database

Research & Studies

Studies library

  • Immunogenicity and stability profile of Thymalin

    Obesity · Systematic review · Feb 1, 2018

    Characterises Thymalin activity in a controlled setting. Endpoints are surrogate measures rather than clinical outcomes.

  • Immunogenicity and stability profile of Thymalin

    British Journal of Pharmacology · Randomized controlled trial (Phase 2) · Jun 15, 2017

    Adds to the Thymalin evidence base without resolving the central question of human efficacy.

  • A systematic review of Thymalin clinical evidence

    Peptides · In vitro characterization · Sep 15, 2012

    One of the more methodologically careful entries in the Thymalin literature.

Independent Testing

Testing database

Laboratory verification of Thymalin products across the companies we index.

Thymalin PureSci Labs
Purity 99.0% Verified

Community Discussions

Forum

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