TB-500 (Thymosin Beta-4 Fragment)

What is TB-500 (Thymosin Beta-4 Fragment)?

TB-500 is the peptide-market name for a synthetic fragment commonly described as Ac-LKKTETQ, derived from the broader biology of thymosin beta-4. Most published human and animal literature is not on TB-500 itself. It is on full-length Tbeta4, a 43-amino-acid protein involved in actin dynamics, cell migration, angiogenesis, inflammation resolution, and tissue repair.

From the BioHarmony report, reviewed 2026-09-08.

How it is thought to work

G-actin monomer binding, cell migration support, angiogenesis signaling, inflammation modulation, matrix remodeling.

Safety watch-outs

• Injection-site infection
• Rapidly worsening swelling or pain

Full risk profile in the BioHarmony report.

Dosing as published

No approved-label or study protocol is recorded for TB-500 (Thymosin Beta-4 Fragment) yet.

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