The E2 (Estradiol) Test Kit is a rapid diagnostic tool designed to measure estradiol levels in blood, serum, or plasma — providing essential insight into hormonal balance and reproductive health. Estradiol (E2) is a key estrogen hormone involved in ovarian function, menstrual regulation, and fertility. This test kit supports health professionals in monitoring hormone status for fertility planning, menstrual irregularities, menopause evaluation, and endocrine assessments.