TB 500 10mg
- Pack Size: vial
- Concentration: 5 mg/ml
- International
- U.S. Domestic
- USA MADE 2-7 days delivery
- International 5-20 days delivery
for: Tissue Repair, Healing, Inflammation Modulation.
TB-500 (Thymosin Beta-4 Fragment) is a specialized research reagent utilized primarily to investigate cellular migration, tissue repair, and angiogenic signaling networks. As a synthetic fragment of the naturally occurring 43-amino acid protein Thymosin Beta-4, it is a potent modulator of actin sequestration. Dragon Pharma provides TB-500 5mg at a purity level of 99%+, specifically for use in in-vitro laboratory experiments and preclinical animal models.
Overview
In the realm of regenerative medicine and cellular dynamics, few compounds offer as much utility as TB-500 (Thymosin Beta-4). This compound is a low-molecular-weight peptide that has become a fundamental tool for investigators exploring the biological "repair kit" of the cell. Dragon Pharma provides TB-500 5mg at a minimum purity of 99%, ensuring that researchers have access to a high-grade Research Peptide capable of producing reproducible and accurate data in complex biological models.
As scientific inquiry into musculoskeletal recovery, cardiovascular repair, and corneal healing expands, the need for reliable actin-binding peptides like TB-500 has grown. This expanded profile examines the biochemical characteristics, structural integrity, and multifaceted research applications of TB-500 5mg.
Molecular Characteristics and Chemical Profile
The structural integrity of TB-500 is what allows it to be easily absorbed by tissues and cross cellular membranes. Its primary role is to bind with G-actin (monomeric actin) to prevent its polymerization into F-actin (filamentous actin), thereby maintaining a pool of actin monomers available for cellular movement.
- Chemical Identity: Thymosin Beta-4 (Fragment 17-23)
- Molecular Formula: C212H350N56O78S
- Molecular Weight: 4963.50 g/mol
- Purity: >99% (HPLC and Mass Spectrometry verified)
- Form: Lyophilized powder
- Manufacturer: Dragon Pharma

Research Applications
The peptide is utilized in various scientific investigative domains, including:
- Cellular Migration: Mapping the pathways of fibroblast and keratinocyte movement to injury sites.
- Angiogenesis: Investigating the formation of new blood vessels and endothelial cell differentiation.
- Inflammation: Studying the modulation of cytokines and the reduction of oxidative stress in damaged tissues.
- Tissue Engineering: Assessing the repair of tendons, ligaments, and muscle fibers in musculoskeletal models.
- Cardiology: Researching the survival of cardiomyocytes and the limitation of scar tissue formation post-ischemia.
Pathway and Mechanistic Context
The core value of TB-500 5mg in a laboratory setting is its ability to manipulate the actin-cytoskeleton pathway without altering the overall protein synthesis of the cell. In a natural physiological state, Thymosin Beta-4 is upregulated following tissue injury. TB-500 provides a concentrated analog to study how this signaling promotes rapid "re-epithelialization" and structural repair.
The Actin-Sequestration Signaling Axis
Upon introduction to a research model, TB-500 initiates a global shift in cellular behavior. It promotes the mobilization of progenitor cells while simultaneously inhibiting the production of myofibroblasts, which are responsible for excessive scarring (fibrosis).
Key Mechanistic Shifts:
- Enhanced Mobility: TB-500 facilitates the "sliding" of cells to wound edges, accelerating closure in epithelial research models.
- Vascular Sprouting: It stimulates the expression of matrix metalloproteinases (MMPs), which assist in the remodeling of the extracellular matrix during angiogenesis.
- Protective Signaling: By maintaining cellular flexibility, it aids in protecting cells from mechanical stress and secondary injury.
Primary Research Applications
1. Musculoskeletal and Connective Tissue Research
TB-500 is heavily utilized in studies involving tendon and ligament repair. Because it promotes cellular migration to poorly vascularized areas, it provides a unique framework for investigating how to accelerate healing in tissues that traditionally recover slowly.
2. Cardiovascular Repair and Ischemic Models
Known in research circles for its "cardioprotective" potential, TB-500 is used to observe how heart tissue adapts to perceived physical strain or oxygen deprivation. Investigators study changes in collateral vessel growth and the preservation of cardiac function in animal models.
3. Ocular and Corneal Healing
In ophthalmic research, TB-500 is studied for its ability to treat corneal injuries. Research models focusing on the eye examine how TB-500 can induce rapid healing of the corneal epithelium while preventing the opacity associated with standard scar formation.

Source: PubMed
Form and Analytical Testing
At Dragon Pharma, the commitment to scientific accuracy begins with a rigorous manufacturing process. TB-500 5mg is produced under strict laboratory conditions to ensure that the compound remains stable and bioactive.
- Lyophilization for Stability: The compound is supplied in a lyophilized (freeze-dried) form. This process removes moisture while preserving the molecular structure, ensuring it arrives at your facility in optimal condition.
- Rigorous Analytical Verification: To guarantee a purity level of 99% or higher, every batch undergoes High-Performance Liquid Chromatography (HPLC) and Mass Spectrometry (MS) to confirm that the chemical signature matches the intended Thymosin Beta-4 profile.
Product Usage Disclaimer: This product is intended for laboratory and in-vitro research use only. It is not approved for human or veterinary application. Must be handled by qualified professionals. Not for drug, food, or cosmetic purposes. Misuse or misbranding is strictly prohibited.
Author:
All information was searched/edited by Dr. S. Edwin, and Dr. E. Croft who holds a doctorate from Case Western Reserve University School of Medicine
Refference:

Storage, Handling, and Reconstitution
For the best results in your research, proper handling of Dragon Pharma TB-500 is essential:
- Storage: Lyophilized vials should be stored at -20°C for long-term stability.
- Reconstitution: Use sterile, bacteriostatic water or saline. Gentle agitation (swirling) is recommended; avoid vigorous shaking to prevent denaturing the peptide.
- Shelf Life: Once reconstituted, the solution should be refrigerated at 2°C to 8°C and utilized within 7 to 14 days to ensure maximum potency.
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