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BPC-157 vs TB-500

What the research says about each, side by side. Every row comes from the studies and drug labels in the last row. More on each: BPC-157 and TB-500.

BPC-157TB-500
CategoryInvestigational peptidesInvestigational peptides
EvidencePrimarily preclinical researchPrimarily preclinical research
FDA statusNot approved by the FDA. Products sold online as "research chemicals" aren't checked for purity, sterility or dose.Not approved by the FDA. Products sold online as "research chemicals" aren't checked for purity, sterility or dose.
How it worksIn animal studies it seems to help grow new blood vessels (via VEGF and nitric oxide), draw repair cells into injuries and protect the gut lining. Whether this applies to people is unknown.It binds actin, part of the cell's internal skeleton, which helps cells migrate. It also seems to calm inflammation and support new blood vessel growth.
Half-lifeNot established in people. In animals it's cleared from the blood within about half an hour.Not established for injected TB-500.
Studied for
  • Tendon, ligament and muscle healing (rats)
  • Gut lining protection and ulcers
  • Blood vessel growth
  • Wound and corneal healing
  • Dry eye
  • Heart repair after injury (animal studies)
Sources
  1. Emerging Use of BPC-157 in Orthopaedic Sports Medicine: A Systematic Review. HSS J, 2025 PubMed
  2. BPC 157 and its role in accelerating musculoskeletal soft tissue healing. Cell Tissue Res, 2019 PubMed
  3. Intra-Articular Injection of BPC 157 for Multiple Types of Knee Pain. Altern Ther Health Med, 2021 PubMed
  1. Thymosin β4 significantly improves signs and symptoms of severe dry eye in a phase 2 randomized trial. Cornea, 2015 PubMed
  2. Thymosin β4 Promotes Dermal Healing. Vitam Horm, 2016 PubMed
  3. Thymosin beta 4 and the eye: the journey from bench to bedside. Expert Opin Biol Ther, 2018 PubMed

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