ASKA Pharmamedical co., LTD. provides testing of endogenous hormones with liquid chromatography-tandem mass spectrometry (LC-MS/MS) and immunoassay for clinical practice and research. We have developed the high performance LC-MS/MS method that has high specificity and sensitivity. The LC-MS/MS method enable to measure hormones accurately even in the low concentration region which have not been achieved before. We can support the request of user to measure hormones in various matrices - not only blood, but also saliva, hairs, cultured cells, tissue and so on.