Free standard shipping$199+ On orders $199+ after discounts Delivery details →
The VRL difference

Documented quality, honest pricing.

Verified Identity purity HPLC + Mass Spec verified, every batch
60% Below reference prices Same labs, same CoA, smaller invoice
Same-day Dispatch Order before 2 PM ET, Mon–Fri
About the compound

TB-500

TB-500 (Thymosin Beta-4) is studied in research settings for cellular migration and repair signaling. Lyophilized powder, 99%+ purity verified per batch.

Third-party tested

Every batch, documented.

No batch ships without passing the full quality panel at an accredited U.S. laboratory.

01

Synthesis

Manufactured under documented internal quality procedures for batch-to-batch consistency.

02

HPLC + Mass Spec

Independent identity and purity testing at an ISO/IEC 17025 accredited U.S. lab.

03

CoA issued

A Certificate of Analysis is generated and lot-linked to the exact vial you receive.

04

Sealed & shipped

Lyophilized, sealed, and dispatched same-day with discreet, unbranded packaging.

Handling & storage

Built for the bench.

Storage

Store lyophilized vials at -20°C for long-term stability. Avoid repeated freeze-thaw cycles.

Handling

For handling by qualified personnel in a controlled laboratory setting only. Keep the vial sealed until it is needed and protect it from light and moisture.

Stability

Sealed lyophilized vials remain stable for 2+ years when stored as directed. Refer to the batch Certificate of Analysis for purity data.

Documentation

A Certificate of Analysis is available to view for this product, independently verified for identity and purity.

Common questions

Before you order.

Is this product third-party tested?

Yes. Every batch is independently tested for identity and purity by an ISO/IEC 17025 accredited U.S. laboratory, and a Certificate of Analysis is available to view for every product.

How is it shipped?

Orders placed before 2 PM ET, Mon–Fri ship same-day in discreet unbranded packaging with tracking. Standard shipping is free on orders $199.00+ and just $9.99 under that — it arrives in 2-3 business days. Expedited shipping is 2 business days ($14.99). Next-Day Shipping is $39.99 for contiguous U.S. street addresses; delivery is the next business day after carrier pickup. Standard shipping is free at $199 after merchandise discounts. Merchandise orders also include a free 3 mL bacteriostatic water.

How do you keep prices competitive?

Direct sourcing, no marketing markup, and transparent margins. The savings come from the supply chain — not from cutting corners on purity, testing, or documentation.

What does "for research use only" mean?

This compound is sold strictly for in-vitro laboratory research. It is not approved for human or veterinary use and is not a drug, food, or cosmetic.

For research use only

This product is sold strictly for in-vitro laboratory research. It is not approved for human or veterinary use, and is not a drug, food, or cosmetic. By purchasing, you confirm you are a qualified researcher or institution.