The Women’s Health Initiative study show that traditional BhRT therapy with Premarin (made from pregnant mares urine) and Provera a chemically synthesized artificial progesterone) is not safe. BhRT with natural Estrogens and Progesterone is safe and does not have to adverse side effects of Premarin and Provera. Provera can increase the rate of breast cancer but natural Progesterone can decrease the rate 10%.
