Used in biomedical research to measure insulin-like growth factor (IGF) levels in biological samples such as serum, plasma, and cell culture supernatants. Enables researchers to study growth, development, and metabolic regulation. Commonly applied in endocrinology, aging studies, cancer research, and sports medicine to assess IGF-1 and IGF-2 concentrations with high sensitivity and specificity. Supports investigation of growth disorders, insulin resistance, and the effects of nutritional or hormonal interventions.