Thymosin Beta-4
The full 43-amino-acid repair protein behind TB-500—studied for wound healing and tissue migration in research settings.
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✨ real molecule sketch
See this name online?
Thymosin Beta-4
Fitness peptides are often sold for “research use”—learn the compound before trusting a label.
Structure (cute edition)
✨ real molecule sketch
This peptide is a short chain of about 4 amino acids—think of it as a tiny protein necklace on your label.
INCI: Thymosin Beta-4 · ~4 amino acids in our simplified view
Research & public records
Counts and links from public databases (PubMed, ClinicalTrials.gov, Wikidata, NIH drug nomenclature). Educational only — not medical advice.
Knowledge base: invertebrate peptide in Echinococcus granulosus
PubMed: 598 indexed papers (search PubMed)
- Understanding the effects of ciprofloxacin on corneal epithelial cells: a study using electric cell-substrate impedance sensing (ECIS) technology. · Experimental eye research
- PEGylated thymosin β4 is a thiol-site-specific prodrug treating myocardial infarction in vivo. · Bioengineering & translational medicine
- Effects of Supplementation in Masters Athletes and Older Adults: A Narrative Review. · Current sports medicine reports
- Reparative Outcomes in Corneal Infection: Linking Adjunctive Tβ4 Treatment to Nerve Regeneration and Visual Function. · Investigative ophthalmology & visual science
- Peptide Therapies in Thyroid Health: Emerging Applications in Endocrine and Immune Modulation. · Integrative medicine (Encinitas, Calif.)
- Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance. · Sports medicine (Auckland, N.Z.)
- Comparative Proteomic Analysis of the Secretome of Control and BRAF/MEK Inhibitor-Resistant Melanoma Cells. · Journal of proteome research
- Thymosin beta 4: An emerging therapeutic candidate for kidney diseases. · Peptides
Clinical trials: 18 studies on ClinicalTrials.gov (view search)
- A Phase 2 Study on Effect of Thymosin Beta 4 on Wound Healing in Patients With Epidermolysis Bullosa · TERMINATED
- A Phase 1b Study of Thymosin Beta 4 in Healthy Volunteers · COMPLETED
- Comparative Study of Thymosin Beta 4 Eye Drops vs. Vehicle in the Treatment of Severe Dry Eye · COMPLETED
- Study of Thymosin Beta 4 in Patients With Pressure Ulcers · COMPLETED
- A Phase 1a Study of Thymosin Beta 4 in Healthy Volunteers · COMPLETED
- Assessment of the Safety and Efficacy of RGN-259 Ophthalmic Solutions for Dry Eye Syndrome: ARISE-3 · COMPLETED
- Study of Thymosin Beta 4 in Patients With Venous Stasis Ulcers · COMPLETED
- Assessment of the Safety and Efficacy of RGN-259 Ophthalmic Solutions for Dry Eye Syndrome: ARISE-1 · COMPLETED
ChEMBL: THYMOSIN · max phase 3.0
What brands say it does
Thymosin beta-4 is a naturally occurring actin-binding peptide involved in cell migration and wound repair. TB-500 sold online is typically a synthetic fragment analog, not the full protein. Legitimate medicine uses related thymosin formulations in specific indications; gray-market TB-500 is a different conversation with purity and legal risk.
Where you’ll find it
Sports medicine research, regenerative medicine papers, and peptide forums—distinct from cosmetic INCI ingredients.
Other names you might see
Tβ4
Thymosin β-4
Compare with similar peptides
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Educational only—not medical advice. Many compounds here are banned in sport and not FDA-approved for OTC use.