Energetic support for menstrual and premenstrual symptoms. Dr. John R. Lee, an expert in the field of natural hormone therapy, and author of Natural Progesterone: the Multiple Roles of a Remarkable Hormone, 1993, states, "women with PMS tend to have lower progesterone than normal at that time in their cycle when progesterone is supposed to be dominant, so that estrogen is dominant instead." Dr. Lee's patients have seen great improvement in the symptoms of PMS, resulting from this hormone imbalance