RH
Exceptional purity for peptide research
We've been sourcing research-grade peptides for several years. Rainbow Peptide's vials consistently pass our HPLC verification — purity exceeds 98% every batch. COA matched our internal testing exactly.
HPLC Verified
>98% Purity
COA Included
SOMA Recovery & Tissue Repair
TB-500
$84.86
TB-500 (Thymosin Beta-4 fragment) is a synthetic analogue of the naturally occurring peptide Thymosin Beta-4. It is studied for its roles in actin regulation, cellular migration, and tissue repair across a range of preclinical models.
| Format | Lyophilized Vial |
|---|---|
| Dosage | 5mg |
| Purity | >98% |
| Sub-Line | SOMA |
In Stock — Overnight and 2–3 day delivery available
Product Information
TB-500 | Thymosin Beta-4 Fragment — Research Grade
TB-500 is a synthetic peptide corresponding to the active region of Thymosin Beta-4 (Tβ4), a ubiquitous 43-amino acid protein involved in actin sequestration and cell motility. It is one of the most researched regenerative peptides in preclinical literature.
Mechanism of Action
- Actin-binding (LKKTET motif) — sequesters G-actin monomers, modulating cytoskeletal dynamics and cell migration
- Inflammatory modulation — downregulates inflammatory cytokines including NF-κB in wound models
- Angiogenesis — promotes endothelial cell migration and new blood vessel formation
- Stem cell recruitment — studied for activation of cardiac progenitor cells in infarct models
Research Areas
TB-500 has been studied in models of tendon, muscle, cardiac, ocular, and neurological repair. It is frequently co-investigated with BPC-157 in synergistic healing protocols.
For Research Use Only. Rainbow Peptide supplies TB-500 exclusively for in vitro and laboratory research purposes. Not for human or veterinary use.
Frequently Asked Questions
- What is TB-500?
- TB-500 (Thymosin Beta-4 fragment) is a synthetic analogue of the naturally occurring peptide Thymosin Beta-4. It is studied for its roles in actin regulation, cellular migration, and tissue repair across a range of preclinical models.
- Is TB-500 for sale at Rainbow Peptide?
- Yes. TB-500 is available for purchase with Certificate of Analysis confirming >98% HPLC purity. Every order Overnight and 2–3 day delivery available. For Research Use Only.
- What purity is your TB-500?
- Rainbow Peptide's TB-500 is >98% pure, HPLC verified by an accredited third-party laboratory. A COA is included with every order.
- Is TB-500 safe for human use?
- No. TB-500 is strictly For Research Use Only (RUO). It is not intended for human consumption and is not intended to diagnose, treat, cure, or prevent any disease.
- How quickly does TB-500 ship?
- Overnight and 2–3 day delivery available. Ships in temperature-controlled packaging.
Third-Party Verified
Every Order Ships with a Certificate of Analysis
We don't just claim purity — we prove it. Every batch of TB-500 is independently tested by an accredited third-party laboratory before it reaches you. Your COA is linked to your specific lot number.
- HPLC purity analysis — minimum threshold >98%
- Mass spectrometry — molecular weight confirmation
- Lot number traceable to your order
- Endotoxin limits verified — safe for cell-based assays
RAINBOW PEPTIDE LABS CERTIFICATE OF ANALYSIS
Product TB-500
Lot # RP-00017-A
HPLC Purity >98.0% >98.5% PASS
Mass Spec (MW) Confirmed Confirmed PASS
Endotoxin <1 EU/mg <0.5 EU/mg PASS
Visual Inspection White powder White powder PASS
What Researchers Say
Verified purchases from active research labs and scientists
5.00
★★★★★
2 verified reviews MT
Reliable consistency batch to batch
Third order now. Consistent batch-to-batch results matter enormously in long-term research. Certificate of Analysis is detailed with mass spec data. Would not switch sources.
SK
Solid product, shipping was fast
Verified against our reference standards. Purity >98.2% by HPLC. Packaging was appropriate for temperature-sensitive peptides. Will re-order.
