Compounded bioidentical hormones in the USA typically contain a large quantity of estriol, a weak estrogen. The rationale for this is that rats pretreated with estriol developed less breast cancer ...

There are several types of estrogen, including estradiol, estriol, and estrone. Estradiol is the most potent and is the primary estrogen produced by the ovaries. Estriol is weaker but has been ...

The protocol most commonly used is the triple marker screen, which measures serum levels of alpha-fetoprotein (AFP), unconjugated estriol (uE3), and beta-human chorionic gonadotropin (beta-hCG).

These creams often contain estriol and are not approved by the Food and Drug Administration. Because they are not regulated, ...