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Research-Grade TB-500 Peptide (99% Purity) 5mg/10mg/25mg in stock

Unit Price:

$40-45/UNIT FOB

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Grade:

Reagent Grade

Content:

99%

Port:

Shenzhen, Shanghai

Brand:

T&L

Packaging:

10 Vials per Kit

Price valid (until):

2026-11-08

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T&L Biosciences

Company Type:

Manufactory

Location:

China

Qualification:

Main Products:

Peptide,Pharmaceutical raw powder

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Product Description
Seller Information

Description

  Product Detail

We supply APIs, pharmaceutical intermediates, and functional peptide materials for research, supporting everything from sample testing and small-batch trial orders to bulk procurement.

We offer:

COA and product specifications
Various specifications and packaging options
Bulk purchase quotes
International shipping and logistics tracking
Long-term, stable supply services
Contact Us

WhatsApp / Telegram:    +1 605 633 3333

Email:   tail333398@gmail.com

FAQ

Q: What is the minimum order quantity (MOQ)?
A: It depends on the product; the standard MOQ is usually 100g, though trial orders of 10g or 20g are available for some products.

Q: Can you provide samples?
A: Yes, free samples are available for some products (shipping costs are borne by the customer).

Q: Are there discounts for bulk orders?
A: Yes. Please provide the product name, quantity, and destination country, and we will provide an accurate quote.

Q: How soon will the order ship?
A: In-stock items usually ship within 1–3 business days after payment confirmation, and tracking information will be provided.

Q: How long does international shipping take?

A: Shipping time depends on the destination country and local delivery conditions. Generally, international shipping takes about 5–12 business days.

Q: What payment methods do you accept?
A: We accept T/T, Wise, Zelle, USDT, BTC, etc.

Q: How do I place an order?
A: Please send us the product name, order quantity, specifications, and destination country; we will then confirm the price, stock availability, and shipping arrangements.

TB-500 is a protein fragment secreted by the thymus gland that plays an important role in cell repair, inflammation regulation and tissue regeneration, TB-500 as its synthetic analogue, is used in research on promoting injury repair and recovery.

Precautions for Use:

★ Non-medical Use:

TB-500 is usually circulated as a "research chemical" and has not been approved as a drug by the FDA.

★ Dosage and Route:

Subcutaneous or intramuscular is required, and the dosage must be strictly controlled, but there is a lack of standardized protocols.

★ Ethics and Law:

Use in competitive sports may lead to suspension, and the general population needs to weigh the risks.

Company Profile:

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Basic Info

Product Name:
TB-500

Categories:
Polypeptide

Research

Class:
Actin-sequestering protein / 43-amino-acid peptide

Status:
Research compound — Not FDA approved (investigational: RGN-259 for dry eye / neurotrophic keratitis)

Mechanism:
A naturally occurring 43-amino-acid peptide (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-OH) that binds G-actin (sequesters monomeric actin), preventing F-actin polymerization. Promotes cell migration, angiogenesis, wound healing, and anti-inflammatory responses via integrin-linked kinase (ILK) and HIF-1α/VEGF pathways. TB-500 is the synthetic fragment Ac-LKKTETQ (MW ~895) often sold under this CAS.

Activity note:
Thymosin Beta-4 is an actin-binding protein, not a receptor agonist. Functional activity is measured by actin sequestration (Kd ~0.7–1 μM) and cell migration assays, not EC₅₀.

Source:
Goldstein AL, et al. Vitam Horm. 2003;66:257–296. RegeneRx RGN-259 clinical program.DOI

Clinical Development:
NCT02974907; NCT02600429; NCT00376974

References

DrugBank:
DB04951

PubChem:
PubChem

UNII:
549LM7U24W

Literature:
PubMed: Goldstein AL et al. (2003) — Review; ClinicalTrials.gov: ARISE-1 (NCT02974907)

Disclaimer:
Thymosin Beta-4 (TB-500) is NOT FDA-approved for human therapeutic use. RGN-259 (Tβ4 ophthalmic solution) is an investigational drug not yet approved. TB-500 sold on research-chemical marketplaces is a synthetic fragment and is not an approved medicine. This listing is for industrial and laboratory research use only. It is not medical advice, a clinical recommendation, or an approved therapy description. Always verify regulatory status, purity, and intended use with the supplier and applicable authorities before purchase or use.
Seller Information

Business Type:
Manufactory

Main Products:
Peptide,Pharmaceutical raw powder

Location:
No. 188 Kaiyuan Avenue, Science City, Guangzhou High-tech Industrial Development Zone, Huangpu District, Guangzhou

Payment Terms:
100% TT in advance

Average lead Time:
15

Total Annual Revenue:
$2.5 million-$5 million

Total Employees:
11-50

Year of Establishment:
2020

T&L Biosciences is a modern biotechnology enterprise specializing in the R&D, production, and global supply of active pharmaceutical ingredients (APIs), pharmaceutical intermediates, plant extracts, and functional ingredients. Our products serve a wide range of sectors—including pharmaceutical R&D, nutrition and health, cosmetics, dietary supplements, and the food industry—providing reliable, professional ingredient supply services to overseas brands, distributors, research institutions, and manufacturers.

We operate a standardized production and processing system; our facilities are designed according to modern production management principles and feature dedicated zones for raw material handling, synthesis and extraction, refining and processing, quality testing, packaging, and warehousing. Through standardized workflows and comprehensive process management, we effectively control every stage—from raw material procurement and production to quality testing, storage, and export—ensuring consistent product quality and efficient order fulfillment.

T&L Biosciences prioritizes quality management and technological innovation. We are equipped with professional testing, analysis, and R&D instrumentation, and maintain a robust quality control system covering raw materials, production processes, and finished products. We offer a range of services tailored to client needs, including specific product specifications, testing reports, sample testing, custom development, and bulk supply.

Leveraging a mature supply chain and extensive international trade experience, we have established a global sales and service network, exporting products to North America, Europe, Southeast Asia, the Middle East, and other international markets. Committed to quality, driven by technology, and focused on long-term partnerships, we continuously provide global customers with stable, efficient, and competitive ingredient solutions.
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Research-Grade TB-500 Peptide (99% Purity) 5mg/10mg/25mg in stock

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