For decades, estrogen therapies have centered on three main forms: estrone (E1), estradiol (E2) and estriol (E3). But now, a lesser-known natural estrogen called estetrol (E4) is stepping into the ...

Estrogen is one of the primary female hormones, and it serves an important function in both reproductive and overall health. Estrogen supports many important processes, from the development of ...

For many women in the United States who encounter drenching night sweats, sudden hot flashes, debilitating exhaustion and other menopausal symptoms, small estradiol patches worn on the skin have ...