TB-500 Nasal Spray
Thymosin Beta-4 fragment nasal spray, 8mg total, 80 sprays at 100mcg per spray.
TB-500 (Thymosin Beta-4 Fragment) · 8mg total per bottle
100 mcg · 80 sprays/bottle · 10mL bottle · 98.481% purity
98.481% purity (HPLC)
Third-party tested · Freedom Diagnostics
Identity confirmed
Tested by Freedom Diagnostics · 03/23/2026
Tested by Janoshik · 11/10/2025
Key Ingredients
Synthetic peptide fragment studied in the context of cell migration, blood vessel formation, and actin polymerization regulation. A major actin-sequestering protein in mammalian cells.
TB-500 is a synthetic version of Thymosin Beta-4, a naturally occurring 43-amino-acid peptide present in virtually all human and animal cells. TB-500 has been investigated extensively in preclinical models for its role in tissue repair, cell migration, and anti-inflammatory responses.
Research Background
Research on Thymosin Beta-4 has focused on its ability to promote cell migration by upregulating actin, which is critical for cell structure and movement. Studies have also explored its potential role in reducing inflammation and promoting angiogenesis in damaged tissues. This product is for research use only.
TB-500
100 mcg per spray
Inactive ingredients / formulation base
Normal Saline (pH 6.0)
Base solution
Benzalkonium Chloride (BKC)
0.01% preservative
Lab-Grade Distilled Water
QS
SKU: TBN0008MG
Shipping: Orders ship within 1–2 business days. Free shipping on orders $100+. Delivery typically 1–3 business days.
Storage: Store in a cool, dry place. Refrigeration recommended after opening for optimal stability. Keep away from direct sunlight.
Thymosin Beta-4 Fragment
43-amino acid peptide studied in tissue repair and cell migration models
TB-500 is a synthetic fragment of Thymosin Beta-4, a naturally occurring 43-amino acid peptide. It is the primary actin-sequestering protein in mammalian cells and has been studied for its role in cell migration, angiogenesis, and tissue repair.
Published Research Data
Quantified findings from peer-reviewed studies on TB-500 (Thymosin Beta-4 Fragment)
amino acid residues in the full Thymosin Beta-4 sequence
Goldstein et al., Expert Opin Biol Ther 2012 ↗
verified purity by HPLC analysis in every Stemcode batch
Stemcode Peptides COA data
Published Research
Studies on TB-500 (Thymosin Beta-4 Fragment)
Review of Thymosin Beta-4's multi-functional regenerative properties including cell migration, anti-inflammatory activity, and tissue repair mechanisms.
View all studies →
Why Research Peptides
All comparisons reflect general industry practices. Stemcode products are intended solely for laboratory research and are not for human consumption.
The Research Standard