Used in biomedical research to quantify relaxin hormone levels in biological samples such as serum, plasma, and tissue homogenates. Enables studies on reproductive physiology, including pregnancy, parturition, and ovarian function. Supports research in cardiovascular health, fibrosis, and tissue remodeling due to relaxin’s role in collagen regulation and smooth muscle relaxation. Commonly applied in preclinical studies for drug development and in diagnostic research to explore hormonal imbalances.