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TB-500 (Thymosin Beta-4)

Animal / preclinicalWADA prohibited

Also known as: TB4, Thymosin β4 fragment

Healing & recoveryRecovery (claimed)Tissue repair (claimed)

Community-reported ranges are anecdotal and not clinically validated. Evidence grade shown reflects the strength of available human data. Not a prescription. Legal status varies by country and changes over time; verify locally.

Overview

A synthetic version of a thymosin beta-4 fragment used anecdotally for recovery. Human clinical evidence is very limited.

Mechanism

Thymosin beta-4 regulates actin and is studied in wound healing; the TB-500 fragment's human effects are unproven.

Evidence

Animal / preclinicalWhat does this mean?

Thin: preclinical and early-stage human research only; no established efficacy for recovery claims.

Community-reported information

Community reports vary widely. Anecdotal and unvalidated; shown as general information only.

General information only, not tailored to you and not a recommendation. Some regions withhold this entirely.

Half-life

Not well characterised in humans.

Storage

Lyophilised: refrigerate. Reconstituted: refrigerate.

Commonly reported side effects

  • Not well characterised
  • Fatigue and head-rush reported anecdotally

Legal status by region

  • USNot FDA-approved for human use.
  • AUPrescription-only / prohibited import without authority.

Legal status changes over time; verify locally before relying on this.

Citations