TB-500 is a synthetic fragment of Thymosin Beta-4, a naturally occurring protein involved in actin regulation and cell migration. It is widely studied in preclinical models for its roles in tissue remodeling, wound healing, and structural cellular response. TB-500 is frequently combined with BPC-157 and is a core ingredient in both the GLOW and KLOW multi-peptide blends.
What researchers study
TB-500 is primarily examined in animal models for its effects on actin polymerization, cellular migration, and wound-related signaling pathways. Research focuses on how it influences tissue structure and regeneration under controlled conditions. It is commonly used alongside BPC-157 in dual-peptide protocols, with the two compounds targeting complementary pathways in tissue repair research.
Quality standards
As with all research peptides, COA verification from a named third-party lab is essential. TB-500 should be sourced as lyophilized powder with HPLC purity ≥98% and mass spec identity confirmation. Lot number traceability is required. Vendors offering TB-500 in pre-mixed liquid form should be avoided.
Pricing (2026)
TB-500 is typically priced per 5mg vial. Budget options range from $28–40. Mid-tier with strong documentation runs $41–58. Premium vendors charge $59–80. It is also available pre-blended in GLOW (with BPC-157 and GHK-Cu) and KLOW (with the addition of KPV).
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