MT-2 (Melanotan II) is a synthetic peptide widely recognized in research settings for its interaction with melanocortin receptors. It has been studied for its potential role in supporting melanin production, which is associated with enhanced skin pigmentation and tanning response. In addition to pigmentation research, MT-2 has drawn interest for its broader effects on energy balance, appetite regulation, and overall metabolic signaling due to its activity across multiple melanocortin pathways. Its multifaceted receptor interaction makes MT-2 a well-known compound in ongoing peptide and metabolic research.