Skip to content
Peptide.Guide

Comparison

BPC-157 vs TB-500

The two most used tissue-repair peptides: overlapping goals, different mechanisms.

BPC-157

Preclinical

Brand names: Body Protection Compound 157

Pentadecapeptide derived from a gastric protein; widely used in research and compounding for tendon, gut, and soft-tissue repair.

Full BPC-157 profile

TB-500

Preclinical

Brand names: Thymosin Beta-4 fragment

Synthetic fragment of thymosin beta-4 promoting actin regulation, cell migration, and tissue repair.

Full TB-500 profile
AttributeBPC-157TB-500
CategoryTissue Repair & HealingTissue Repair & Healing
Evidence tierPreclinicalPreclinical
FDA statusNot FDA-approved. FDA placed on the Section 503A Negative List; compounding is restricted.Not FDA-approved. WADA prohibited at all times.
MechanismBPC-157 upregulates growth hormone receptor expression in tendon fibroblasts, promotes VEGFR2 signaling and angiogenesis, stabilizes the nitric oxide system, and modulates dopaminergic and serotonergic pathways.TB-500 sequesters G-actin and regulates actin polymerization, enabling endothelial and stem cell migration to sites of injury. It promotes angiogenesis and downregulates inflammatory mediators.
Key benefits
  • Accelerated tendon and ligament healing in preclinical models
  • Gut mucosal healing (IBD models)
  • Anti-inflammatory effects
  • Neuroprotective signaling in animal models
  • Accelerated soft tissue recovery in animal models
  • Supports cardiac and vascular repair (preclinical)
  • Often stacked with BPC-157 for synergy
Dosage range250 – 500 mcg per dose2 – 5 mg per week (split doses)
FrequencyDaily, 1–2x/day2–3x per week
RouteSubQSubQ
Common side effectsGenerally well tolerated in research, Mild injection site irritation, Unknown long-term safetyMild fatigue during loading, Injection site bruising

Educational reference only, not medical advice. Data reflects each compound’s profile page; see individual profiles for references and full safety information.

Newsletter

Track this space.

Get research updates on BPC-157, TB-500, and the wider peptide field. Once a week, no spam.

Unsubscribe in one click. We don’t share your email.

More comparisons

Semaglutide vs TirzepatideTirzepatide vs RetatrutideSemaglutide vs RetatrutideTirzepatide vs MazdutideSemaglutide vs CagrilintideIpamorelin vs CJC-1295 (No DAC)Ipamorelin vs SermorelinSemax vs SelankMOTS-c vs SS-31 (Elamipretide)

This site is for educational and research purposes only. It does not constitute medical advice. Always consult a qualified healthcare provider before using any peptide or supplement.