Progesterone stands for pro-gestational or the hormone of pregnancy.  It is absolutely necessary for the initiation and maintenance of pregnancy.  Progesterone is a hormone produced by the ovaries and is used in nature to balance estrogen.   It too can safely and effectively relieve menopausal symptoms, protect against cancer, prevent osteoporosis and improve overall well being.
Natural or bio-identical progesterone has the exact same molecular structure as your own.  This means that your body responds to this type of progesterone like a key in a lock.  Progesterone enhances the action of estrogen as these two hormones were meant to work together to maintain normal hormonal balance.
The lack of progesterone causes similar disease processes as the lack of estrogen.

These Include:  Osteoporosis, Heart Disease, decreased libido, insomnia, anxiety, and significantly reduced quality of life.  The combination of natural progesterone and estrogen can prevent this downward spiral by keeping women vital, strong and healthy.
Progesterone is a very beneficial treatment for PMS, which may include moodiness, irritability, bloating and headaches.  The symptoms are due to falling progesterone levels.  Natural progesterone helps to balance both pre-menopausal and post-menopausal levels of estrogen and hormone induced symptoms such as emotional instability, headaches and mood swings.  It also offers protection against uterine cancer as well as breast cancer as evidenced by European studies.   A different study showed that progesterone was better than Tamoxifen in protecting against breast cancer.  (Tamoxifen is the chemotherapeutic agent of choice for treatment of breast cancer).  This is an extremely important study because up to this point there had been nothing shown to decrease the risk of breast cancer.  Progesterone inhibits the growth of breast cancer cells.

Progesterone levels are highest during pregnancy and are essential to carrying to term.  These high progesterone levels are often responsible for women reporting how great they felt during pregnancy.  It is the sudden decline of progesterone after giving birth that causes post partum depression.  Treatment with natural progesterone post-partum can help new mothers cope while their hormones re-balance.

In Summary, the Benefits of Natural or Bio-identical Progesterone:
Reduces cholesterol levels and increases HDL or the ‘good’ cholesterol.
Progesterone is a natural tranquilizer, aiding in more deep and rejuvenating sleep.
Promotes feelings of well-being and also reduces irritability and anxiety.
Enhances the beneficial actions of estrogen and relieves the uncomfortable symptoms of menopause by working in tandem with estrogen.
Stimulates new bone cell formation, which protects against osteoporosis.
Protects against cardiovascular disease.
Promotes Hair Growth
Causes of Progesterone Deficiency:
Decreased thyroid hormone (low thyroid)
Deficiencies of Vitamins A, B6, C and zinc
Excessive arginine consumption
Impaired production
Increased prolactin production
Low Luteinizing hormone (LH)
Saturated fat