Used to measure human hormone-sensitive lipase (HSL) activity in biological samples such as serum, plasma, or tissue extracts. This kit is widely applied in metabolic research, particularly in studies related to lipid metabolism, obesity, diabetes, and insulin resistance. It enables researchers to quantify HSL phosphorylation and enzymatic activity, providing insight into lipolytic pathways in adipose tissue and other metabolic organs. The assay supports drug development and evaluation of compounds targeting lipid mobilization and energy homeostasis.