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 Regeneration & Aging Research, Cellular Growth & Signaling

TB-500

TB-500 is a synthetic peptide derived from Thymosin Beta-4 and is commonly utilized in biochemical and molecular research involving peptide–receptor interactions and signaling pathway analysis. In controlled laboratory settings, TB-500 is studied for its role in peptide-associated signaling mechanisms, intracellular pathway analysis, and structure-function characterization under defined in vitro conditions. This material is supplied in lyophilized powder form and is intended strictly for in vitro research and analytical applications.

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Product Usage: Not for Human or Veterinary UsePure Health Peptides products are supplied to qualified research professionals and institutional users for in vitro laboratory research only. KYC verification is required prior to order fulfillment, and we reserve the right to refuse orders that do not meet buyer qualification criteria. These products are not drugs, foods, cosmetics, diagnostic products, or dietary supplements, have not been evaluated by the FDA, and are not intended for human or animal use. Any such use is prohibited and may violate federal, state, or local law. By purchasing, the buyer represents and warrants that the product will be used solely for in vitro research. The buyer agrees to indemnify, defend, and hold harmless Pure Health Peptides, its officers, employees, and agents from and against any and all claims, damages, losses, liabilities, costs, and expenses (including reasonable attorneys fees) arising out of or relating to the buyer’s use, handling, storage, or disposition of the product in any manner inconsistent with its research-use-only designation or applicable law.

Description

Product Name:

TB-500 (Thymosin Beta-4)

Chemical Information:
  • Molecular Formula: C212H350N56O78S
  • Molecular Weight: 4963.49 g/mol
  • Sequence: Ac-Ser-Asp-Lys-Pro-Asp-Met-Ala-Glu-Ile-Glu-Lys-Phe-Asp-Lys-Ser-Lys-Leu-Lys-Lys-Thr-Glu-Thr-Gln-Glu-Lys-Asn-Pro-Leu-Pro-Ser-Lys-Glu-Thr-Ile-Glu-Gln-Glu-Lys-Gln-Ala-Gly-Glu-Ser
  • Molecular Structure:



Molecular Structure

Product Description:

TB-500 is a synthetic peptide derived from Thymosin Beta-4 and is commonly utilized in biochemical and molecular research involving peptide–receptor interactions and signaling pathway analysis. In controlled laboratory settings, TB-500 is studied for its role in peptide-associated signaling mechanisms, intracellular pathway analysis, and structure-function characterization under defined in vitro conditions. This material is supplied in lyophilized powder form and is intended strictly for in vitro research and analytical applications.

Research Applications:

TB-500 is utilized in controlled research environments to support investigation of:

  • Peptide–receptor interaction dynamics and signaling pathway analysis
  • Intracellular signaling cascade evaluation associated with peptide ligands
  • Structure-function relationships of Thymosin Beta-4–derived peptide sequences
  • Cellular interaction modeling in controlled experimental systems
  • Stability, degradation, and analytical profiling in assay-based environments

All research applications are conducted in non-human, non-clinical experimental settings.

Storage and Handling:
  • Store lyophilized material at −20°C (−4°F)
  • After reconstitution, store at 2–8°C (36–46°F) and use promptly
  • Avoid repeated freeze-thaw cycles
  • Maintain aseptic laboratory handling procedures
Product Specifications:
  • Purity: ≥99% (HPLC Certified)
  • Appearance: Lyophilized white powder
  • Solubility: Soluble in suitable laboratory agents
Compliance Notice:

TB-500 is FOR RESEARCH USE ONLY. It is not intended for human or veterinary use. This product has not been evaluated by the FDA. Misuse of this product is strictly prohibited and may violate federal, state, or local laws.​ By purchasing this product, buyer represents and warrants that it will be used only for in vitro research purposes.

Certificate of Analysis

Certificate of Analysis

At Pure Health Peptides, transparency is key. Every batch is third-party tested in the USA, with Certificates of Analysis (COAs) readily available for verification, giving researchers confidence in their work.

View Certifications

Frequently Asked Questions

What is TB-500?
TB-500 is a synthetic peptide corresponding to Thymosin Beta-4 (Tβ4), a naturally occurring 43-residue peptide. As supplied here it is the full N-acetylated Tβ4 molecule, with molecular formula C212H350N56O78S and a molecular weight of 4963.49 g/mol. Pure Health Peptides supplies it as a lyophilized powder strictly for in vitro laboratory research.
Is TB-500 the same as Thymosin Beta-4?
The research material supplied here is the full Thymosin Beta-4 (Tβ4) peptide. The name "TB-500" is sometimes used in the literature for the short actin-binding fragment of Tβ4 (the LKKTETQ region), but this product corresponds to the complete 43-residue Tβ4 sequence, characterized as a defined reference material.
What is TB-500 studied for in research?
In controlled laboratory settings, TB-500 (Thymosin Beta-4) is studied as an actin-binding peptide. Research literature reports that Tβ4 binds and sequesters G-actin, regulating actin polymerization and cytoskeletal dynamics, and that it has been examined in cell-migration and angiogenesis models. Note: Thymosin Beta-4 / TB-500 appears on the World Anti-Doping Agency prohibited list. These are research findings; all applications are non-clinical.
How is TB-500 different from BPC-157?
They are two distinct peptides that are often studied together but are chemically and mechanistically different. TB-500 corresponds to the 43-residue Thymosin Beta-4 and is studied for actin binding; BPC-157 is a 15-amino-acid peptide studied for other pathways. They are supplied as separate, individually characterized research compounds.
What are TB-500's chemical specifications, and what size does it come in?
TB-500 has the molecular formula C212H350N56O78S and a molecular weight of 4963.49 g/mol (refer to the lot-specific Certificate of Analysis for the exact value). It is supplied as a lyophilized white powder in 5 mg and 10 mg vials at greater than or equal to 99% purity (HPLC). Store in a cool, dry place away from light and moisture.
Where can I buy TB-500, and is it third-party tested?
TB-500 is available from Pure Health Peptides as research-grade material in 5 mg and 10 mg vials at greater than or equal to 99% HPLC-verified purity. Every production lot is third-party tested in the US, with a lot-specific Certificate of Analysis available for verification.
Is TB-500 intended for human or clinical use?
No. TB-500 is for research use only and is not intended for human or veterinary use. It has not been evaluated by the FDA and is not a drug, food, cosmetic, or dietary supplement. It is supplied only to qualified research professionals for in vitro laboratory research, and KYC verification is required prior to fulfillment. Any use outside of controlled in vitro research is strictly prohibited.