Buy TB-500 — Research-Grade from QSC

TB-500 is available from QSC Peptides at ≥99% HPLC purity with Janoshik-independent COA documentation. Free domestic shipping from USA, EU, UK, Canada, and Australia warehouses.

What Is TB-500?

TB-500 is a synthetic peptide corresponding to the active region of thymosin beta-4 (Tβ4), a 43-amino-acid actin-binding protein that is the most abundant member of the beta-thymosin family. TB-500 retains the key actin-sequestering properties of full-length Tβ4 — binding G-actin monomers to regulate cytoskeletal dynamics and enabling cell migration to injury sites. It also promotes angiogenesis (new blood vessel formation) through VEGF pathway upregulation, modulates inflammatory signaling via NF-κB pathway interaction, and supports extracellular matrix remodeling. Unlike localized treatments, TB-500's effects are systemic — it circulates throughout the body to reach damaged tissue regardless of injection site.

Classification

Thymosin Beta-4 Fragment — Systemic Tissue Healing

Role in the Clavicular Ascension Stack

Within the 12-compound Clavicular Ascension Stack, TB-500 pairs with BPC-157 for the synergistic tissue repair and recovery pathway. While BPC-157 provides localized NO-mediated growth factor signaling at injury sites, TB-500 enables systemic cell migration and builds new vasculature to support the repair process.

Specifications

Part of the Ascension Stack

TB-500 is one of 12 compounds in the Clavicular Ascension Stack — the most comprehensive looksmaxxing research protocol available. The full stack covers 8 biological pathways with Retatrutide, Melanotan II, HGH, IGF-1 LR3, GHK-Cu, NAD+, Testosterone Cypionate, L-Glutathione, BPC-157, TB-500, CJC-1295, and Anavar.