TB-500 is a synthetic peptide. The natural protein occurs in cells and is called Thymosin Beta 4, which has a role in tissue protections, repair, regeneration and remodeling of injured or damaged tissues as well as anti-aging properties. BPC-157 (Body Protection Compound) is a popular peptide providing anti-inflammatory effects & has been shown to help improve connective tissue injuries – such an ligament tears, tendon sprains, and joint injuries.