
TB-500
Third-Party Tested · COA Available- Certificate of Analysis available for every lot
- ≥99% purity, HPLC & mass-spec verified
- Ships from a U.S. facility — same-day before 2PM EST
- Secure checkout · Free shipping on orders $300+
Complete your setup
Lyophilized peptides need bacteriostatic water and a syringe to reconstitute. Add the essentials in one click.
TB-500In your orderTB-500 is a synthetic peptide based on the active region of thymosin beta-4, a protein involved in actin regulation. It is studied in cell-migration, angiogenesis and tissue-repair models.
Common research applications include:
- Cell migration and actin research
- Wound-healing models
- Cardiovascular repair studies
Specifications
- Class: Thymosin beta-4 fragment
- Form: lyophilized powder in a sealed glass vial
- Available sizes: 10 mg
- Purity: verified at 99% or higher by HPLC, identity confirmed by mass spectrometry
- Testing: every lot is third-party tested, with a lot-matched Certificate of Analysis available on request
- Manufactured in the USA
- Storage: keep sealed, cool, dry and away from light; refrigerate after reconstitution
For laboratory research use only. This product is not for human or veterinary use, is not a drug, food or cosmetic, and is not intended to diagnose, treat, cure or prevent any disease.
Frequently Asked Questions
Is TB-500 third-party tested?
Yes. Every lot is independently third-party tested for identity and purity — ≥99% by HPLC and mass spectrometry — with a lot-matched Certificate of Analysis available on request for every lot.
Can I see the Certificate of Analysis before buying?
Yes. Ask us for the lot-matched COA before you order and we will send it, documenting identity, purity, and full analytical results.
What does 'Research Use Only' mean?
This product is supplied strictly for laboratory and research use only (RUO). It is not a drug, food, supplement, or cosmetic, is not approved by the FDA, and is not intended to diagnose, treat, cure, or prevent any disease, or for human or veterinary consumption.
How is it shipped and stored?
Orders placed before 2PM EST typically ship the same business day from our U.S. facility with tracking. Store the lyophilized material at −20°C, protected from light and moisture.
Learn more about TB-500
From the research blog

Setting Up a Small-Lab Peptide Storage Station: Freezer, Fridge, Desiccant and Labeling
A lab-operations guide to freezer and fridge zones, desiccant, light control, labeling and temperature logs for a peptide storage station.
Read the article →
What Is TB-500? The Acetylated Heptapeptide From Thymosin Beta-4
TB-500 is a seven-residue synthetic peptide. Most of the biology cited next to it belongs to a 43-residue protein. Here is how the two relate and what the vial actually contains.
Read the article →
Why Research Peptide Prices Vary So Much Per Milligram
Two vials of the same nominal mass can differ several-fold in price. Here is what actually sits behind the number, and what a very low price usually signals.
Read the article →

