USP (U.S. Pharmacopeia) provides standards for more than 3,700 medicines, dietary supplements and dosage forms. The "USP" on natural progesterone USP is given because it meets standards of purity (99%). To visit the website of U.S. Pharmacopeia, please click the link at the bottom of this page.

Natural hormones are developed through DNA technology. Sterol analogues from certain plants (wild yam) are combined with specific bacteria (microbial fermentation) and the resulting hormone is bio-identical in chemical structure to the hormone produced by the human body. See similar questions...

Synthetic progesterones (called 'Progestins') are drugs created and manufactured by drug companies. They are patented molecules not found in nature or our bodies. Because there are known side-effects, they are only available by prescription and require physician oversight. Synthetic progesterone once inside your body seeks out and resides in the cells, which have progesterone receptor capabilities. See similar questions...

Natural" progesterone (also termed USP Progesterone) refers to a single molecular structure that is "bio-identical" to the progesterone molecule that the body makes. Synthetic "progestins" or "progestogens," do not exactly duplicate the body's own progesterone molecule. They mimic the body's progesterone closely enough to bind to progesterone receptor sites and have some progesterone-like effects, but they do not deliver the full range of "messages" that a natural progesterone molecule would. See similar questions...

According to physicians who use natural progesterone in their practices, the instructions are as follows: st Month: Use cr?me as directed. Take synthetic estrogen pill every other day or cut estrogen patch in half. nd Month: Use cr?me as directed. Take synthetic estrogen pill every third day or cut estrogen patch in quarters rd Month: Use cr?me as directed. Take synthetic estrogen pill every fourth day. If using the patch, go totally off it. See similar questions...

United States Pharmacopoeia (USP) Progesterone simply means progesterone that exactly duplicates the progesterone naturally produced in the body, or "bio-identical" progesterone. The title "USP Progesterone" differentiates natural progesterone from synthetic progestins or progestogens. See similar questions...

In his book, "What Your Doctor May Not Tell You About Menopause," Dr. Lee breaks down the adequate daily amount of natural progesterone USP to be "20 to 30 milligrams per day." He further writes, "let's say each two-ounce jar or tube of 3 percent (by volume) or 1.6 percent (by weight) progesterone cream contains 950 milligrams." This would mean that a two-ounce jar with 950 mg has forty-eight 1/4 teaspoon applications and each application would provide about 19.79 mg of progesterone. See similar questions...

Natural progesterone, a cholesterol derivative, comes from the Mexican yam or soybeans. It matches exactly the chemical formulation of the body's own progesterone and thus causes no side effects. Manufacturers of synthetic progesterone alter the chemical makeup of progesterone in order to create progestins. See similar questions...

Consumers should be wary of the term "natural" when used to describe cleaning products. All of the chemicals used to make the ingredients that go into cleaning products are found in nature. Very few chemicals extracted from plants or the earth are used without further processing to obtain ingredients that perform a cleaning function. Thus, the term "natural" to describe a final product can be misleading. See similar questions...

Synthetic progesterone (progestins) simply do not perform the same functions in the body. They can even lower your levels of progesterone. Natural progesterone is also a precursor to many other hormones in your body, so it is imperative that it be used in its natural form. See similar questions...

Your doctor or health care professional is truly interested in seeing you regain and maintain good health. Have him or her simply follow along with your use of Natural Progesterone. Another option is to supply a copy of one of Dr. Lee's books. See similar questions...

Progestins do not convey the full spectrum of progesteron's benefits as listed above and they have numerous potential deleterious side-effects not found when using natural progesterone. The natural hormones are more quickly metabolized and excreted than the synthetic versions. Progesterone has no known side effects. See similar questions...

Pharmaceutical progestins do not appear in the biosynthetic pathway. The fact is, they are not found in any living forms. Furthermore, being foreign to all living things, they are patentable and thereby potentially more profitable. Natural Progesterone is from a plant extraction and is not patentable See similar questions...

During the years before actual menopause, estrogen may be decreasing only slightly and ovulation has ceased or is rare. Without ovulation, progesterone production is essentially zero making a woman estrogen dominant. Further supplementing the dominant estrogen simply does not make sense, and synthetic progestins have undesireable side effects. See similar questions...

This is the question most frequently asked of Dr. John Lee during his more than 30 years of active clinical practice. To quote from Dr. Lee: "The medical-industrial complex refers to the close knit association of organized medicine with the pharmaceutical manufacturers and governmental medical regulatory agencies... The system taken together is neither necessarily corrupt nor evil, but, like any human agency, is subject to the frailties and faults of humankind. See similar questions...

HTP stands for 5 Hydroxy Tryptophan and is the "immediate precursor" building block for Serotonin, a very important neurotransmitter in the brain. Serotonin helps to maintain emotional stability and aids in sleep. 5HTP is derived in the natural state by the grinding of seeds from the Griffonia plant. It is not a synthetic chemical. Serotonin syndrome” is most commonly caused by the combination of multiple antidepressant medications. See similar questions...

Natural hormones are, in fact, bioidentical hormones. The fact that the bioidentical hormones come from natural plants (soy or yam plants) does not make them bioidentical. From there they are taken to a chemical plant where they are further processed into the bioidentical forms. They are further tested for bioidentical purity, so that when a compounding pharmacy receives these products they are ready to be compounded into different dosage forms. See similar questions...