Natural progesterone is made by the ovaries prior to menopause and by the adrenal glands and fat cells after menopause and is the precursor for natural estrogen. It is the single most important hormone in the female body.
When the female body fails to produce enough progesterone between ovulation and menstruation and during menopause, natural progesterone cream can address the underlying cause of most symptoms.
Because the female body uses natural progesterone to make natural estrogen, a properly formulated natural progesterone cream is the natural safe choice for menstruating women and for post-menopausal women seeking to establish the correct balance of their two primary female hormones. This balance will protect them from the effects of Estrogen Dominance.
As you can see, natural progesterone counterbalances the effects of too much estrogen discussed here.
For further information to ask own physician.