TB-500 (Thymosin Beta-4) is a naturally occurring 43-amino-acid peptide present in virtually all human and animal cells. As a major actin-sequestering protein, it plays a crucial role in cell migration, proliferation, and differentiation. Research has focused on its potential effects on tissue repair, wound healing, and recovery from injury. TB-500 is studied for its ability to promote angiogenesis and reduce inflammation.

AOD-9604 (Anti-Obesity Drug 9604) is a modified fragment of human growth hormone comprising amino acids 177-191. This 15-amino-acid peptide was originally developed to study fat metabolism without affecting IGF-1 levels or insulin resistance. Research has investigated its potential lipolytic effects and its role in cartilage and bone repair.