Irisin (human recombinant) is primarily utilized in research focused on metabolic regulation and its potential therapeutic applications. It is studied for its role in converting white adipose tissue into brown adipose tissue, which is associated with increased energy expenditure and fat burning. This makes it a promising candidate for addressing obesity and related metabolic disorders. Additionally, irisin is investigated for its potential benefits in improving insulin sensitivity, making it relevant for diabetes research. It is also explored for its neuroprotective effects and its role in enhancing cognitive function, particularly in neurodegenerative diseases. Furthermore, its anti-inflammatory properties are being examined for potential applications in treating chronic inflammatory conditions. In exercise physiology, irisin is studied to understand its role in muscle adaptation and its connection to physical activity-induced health benefits. Overall, irisin (human recombinant) serves as a valuable tool in advancing knowledge of metabolic health, disease prevention, and therapeutic development.