TB-500 10mg/mL

What is TB-500 (Thymosin Beta-4)?

TB-500 is a synthetic version of a peptide fragment derived from Thymosin Beta-4, a protein naturally produced throughout the body in nearly every cell type. Thymosin Beta-4 plays a central role in the regulation of actin — the structural protein responsible for cell movement, wound healing, and tissue repair. TB-500 isolates the most bioactive segment of this protein, making it a focused tool for recovery and healing.

How It Works

TB-500 promotes cell migration to sites of injury — effectively recruiting repair cells to where they are needed. It also stimulates the formation of new blood vessels (angiogenesis) and reduces inflammation at the injury site. Unlike BPC-157, which tends to work locally near the injection site, TB-500 has a more systemic distribution, allowing it to support healing at distant tissue sites throughout the body.

Key Benefits

Research and clinical use suggest TB-500 supports recovery from muscle tears, tendon injuries, ligament damage, and joint issues. It has also been studied for its role in cardiac tissue repair and neurological regeneration. In practice, TB-500 is commonly used by people recovering from sports injuries or managing chronic musculoskeletal conditions. It pairs particularly well with BPC-157 for a synergistic recovery stack that addresses both local and systemic repair.

What to Expect

TB-500 is typically administered via subcutaneous injection 2–3 times per week during a loading phase, then reduced to a maintenance frequency. Most users report improvements in mobility and pain reduction within 3–6 weeks. Results depend on the severity of injury, overall health, and adherence to the protocol. As with all peptides, it should be used under the guidance of a licensed prescriber.

Quality & Sourcing

Every TB-500 formulation from Greenstone Peptides is compounded in the USA by licensed pharmacy partners under USP 797 sterile standards. Each batch is third-party tested for potency, sterility, and endotoxin.