BPC-157 Peptide, also known as Pentadeca peptide BPC-157, or Body Protection Compound 157, is a wholly synthetic peptide that is potentially linked to multiple cellular functions and is perceived to have significance in healing of experimental models of injury. It is speculated to engage with cellular communication routes, possibly affecting elements associated with rejuvenation and recuperation. A few research studies hint that BPC-157 might also possess capabilities to encourage blood vessel formation and regulate inflammation-related activities. Moreover, experimental findings have posited that BPC-157 may aid in safeguarding and regenerating various cells and tissues. Overall, BPC-157 has been suggested in various studies to potentially help with healing joint, tendon, and muscle tissue, as well as nerve tissue.

TB-500 Peptide, also known as Synthetic thymosin beta-4, or TB-4, has been suggested by researchers to possibly assist in the healing process after injury, especially brain and neurological injury. Other TB-500 research has suggested it helps with wound healing and with hair growth. The peptide is a man-made variant of the thymosin beta-4 (Tβ4) peptide found naturally within the cells of the thymus organ, and encoded by the TMSB4X gene. From research on thymosin beta-4, TB-500 appears to modulate cell movement, differentiation, and tissue healing. It is believed to engage with various cellular signaling routes to manifest its actions. Investigations further imply that TB-500 might encourage angiogenesis, as well as cellular and tissue renewal.

Both BPC-157 and TB-500 are synthetic polypeptides, where TB-500 is composed of 43 amino acids, and BPC-157 is composed of 15 amino acids.