Progesterone balances Estrogen, and Progesterone could be called the “calming” hormone. Progesterone deficiency causes swollen tender breasts, anxiety, aggression, irritability, bloating, water retention, and breast cysts. Progesterone prevents the formation of intrauterine cancers and must be taken along with estrogen to promote optimal health. By balancing the effects of estrogen, Progesterone lowers blood pressure, helps the body use/eliminate fats, lowers cholesterol, lowers risk of breast cancer, increases scalp hair, normalizes libido, and increases the beneficial effects of estrogen on blood vessel dilation in atherosclerotic plaques. Oral progesterone in oil taken at bedtime helps promote a restful, restorative sleep.