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Repair & Tissue · Thymosin β4 fragment
TB-500
Where cell movement starts.
A synthetic peptide corresponding to the active binding region of thymosin beta-4, supplied lyophilized.
≥99% HPLC /Lot-traceable/Ships today
In stock Dispatched same day on orders placed before 12pm MST
99% purityHPLC verifiedBatch COA USA manufactured
$100
$10/mg
Lab-tested98.69% purity · latest tested lot · lot JIN21 · Freedom Diagnostics, 2/7/2026 · View certificate
Add ons
Required for reconstitution · Pharmaceutical grade · 0.9% benzyl alcohol
A 10 mg vial takes about 3 mL — one 30 mL bottle covers about 10.
Want this size when it lands? Email info@metrapeptides.com and we'll tell you the day it does.
Ordering in volume? Ask us for a quote before you order.
Same-day dispatch on orders placed before 12pm MST.
Free shipping over $300. Every vial ships with its lot certificate.
Why this one
Actin dynamics underlie every migrating cell. TB-500 is the fragment of thymosin beta-4 that binds actin directly, which is what makes it a tool rather than a curiosity — the cytoskeleton becomes the variable you can manipulate.
Used in actin-binding assays, scratch-closure and transwell motility experiments, and preclinical tissue remodelling models. Frequently paired with BPC-157, which is why we also ship the blend.
Where it shows up in the literature
Actin regulationSequestration and polymerisation behaviour in cytoskeletal assays.
Cell migrationScratch-closure and transwell motility readouts.
Tissue remodellingPreclinical connective and cardiac tissue models.
Comparative repairCharacterisation alongside other repair-associated peptides.
Specifications
- Compound
- TB-500
- Presentation
- 10 mg
- Class
- Thymosin β4 fragment
- Form
- Lyophilized powder in a sealed vial
- Purity
- ≥ 99% HPLC
- Storage
- 2–8°C sealed
- Origin
- USA, GMP facility
Lot-specific identity, purity, net content and endotoxin figures are stated on the certificate of analysis supplied with each vial.
Handling
Store sealed vials at 2–8°C for short-term use, or at −20°C for long-term storage, and protect from light. Reconstitute with the diluent your protocol specifies; bacteriostatic water is the common choice where a vial will be entered more than once.
Allow refrigerated material to reach room temperature before opening, and avoid repeated freeze-thaw cycles once in solution.
Certificate of analysis
Every lot is tested by an independent ISO-accredited laboratory. The lot number on your vial resolves at the testing laboratory directly, so the purity figure never has to come from the party selling it to you.
Open the COA libraryResearch use only. TB-500 is supplied strictly for research, laboratory and analytical use. It is not for human or veterinary consumption in any form, is not a drug, dietary supplement, cosmetic or medical device, and is not intended to diagnose, treat, cure or prevent any disease. Nothing on this page constitutes a medical claim, a treatment recommendation or a dosing protocol. Purchasers must be 21 or older and must handle all material in compliance with applicable federal, state and local law. Read the full disclaimer.
