Estrogens

Estrogens are the main feminizing hormones in the human body, and are often used by transgender people to induce feminization with the help of an an anti-androgen. They are produced endogenously in humans with functional ovaries in four different variants:


 * E1: Estrone A weak estrogen roughly 4% the potency of Estradiol.
 * E2: Estradiol The most potent and prevalent estrogen found in humans, and is often the variant used in HRT.
 * E3: Estriol
 * E4: Estetrol