meto
Log in
Peptide

TB-500

Also known as Thymosin Beta-4 · Tβ4

A synthetic fragment of Thymosin-β4 that accelerates cellular migration to damaged tissue — the recovery-focused partner to BPC-157.

Definition

TB-500 is a 43-amino-acid fragment of the naturally occurring protein Thymosin-β4. It binds G-actin and regulates the actin cytoskeleton, accelerating migration of stem and progenitor cells to sites of tissue damage. Preclinical evidence strongest for cardiac and musculoskeletal regeneration. Functions as part of the P3 Recovery stack alongside BPC-157.

How Meto uses it.

Dosing: TB-500 is dispensed at 2 mg per vial and reconstituted on arrival. Acute-repair dosing is 750 mcg twice weekly near the affected tissue for four weeks, tapering to 500 mcg weekly through week eight. Availability: Solo TB-500 is not currently available while awaiting FDA regulatory action.

Safety notes

  • Contraindicated in active cancer diagnosis — the migration-activating mechanism has theoretical concerns
  • Avoid in pregnancy and lactation
  • Prohibited under WADA rules for tested competitive athletes
  • Transient fatigue during the loading phase is the most common complaint

Not a complete list — your clinician reviews your full history, labs and medications during intake. Nothing here replaces that.

Common questions

Can I keep training while on TB-500?

Yes with modified intensity; peptide repair signalling works better alongside continued mechanical loading.

PreviousSubcutaneous InjectionDelivery & DosingNextTelehealth PrescribingPharmacy & Regulation

Read More

Peptide

BPC-157Body Protection Compound 157

A 15-amino-acid peptide derived from a protein in human gastric juice, studied for gut-lining repair and soft-tissue healing.

Mechanism

Angiogenesis

The formation of new blood vessels from existing vasculature — the core repair mechanism BPC-157 accelerates via VEGF.

Safety

WADAWorld Anti-Doping Agency

The body whose prohibited list includes BPC-157, TB-500, GHRH analogs and most growth-hormone-axis peptides.

$149 panel.
A clinician reads it in 24 hours.

Order the Peptide Readiness Panel, draw at a Quest or LabCorp near you, and your clinician sends back a matched protocol with a confidence score.

Start with labs · $149