Our bodies make three different forms estrogens: Estrone (E1) Estradiol (E2) Estriol (E3) Estrone is usually considered an "unhealthy" estrogen. It is still bioidentical, but you do not want loads of estrone around when you are balancing the hormones. Estrone is common in young girls when they first get their periods and after menopause. Estrone […] The post What is the Difference Between Estriol and Estradiol? | PYHP 036 appeared first on .