Where Science Brings Out the Best in Nature

Puresterol® is the only patented, specially processed, and highly active compound of Pueraria mirifica available in the market today.

Puresterol® is a registered trademark of Bio Botanica® Inc.,
U. S. Patent # 7,658,955


Puresterol® is produced under an exclusive, patented extraction process in the U.S. that delivers a highly consistent and potent compound. Puresterol® is produced in an FDA inspected manufacturing facility that operates as a dietary manufacturer under DSHEA. The resulting Puresterol® extract is of the highest quality in the industry.

Puresterol® guarantees a minimum level of miroestrol and deoxymiroestrol, as well as isoflavones. Pueraria mirifica also contains other chemicals that belong to the isoflavone and coumestran group of phytoestrogens, such as Genistein, Daidzein, Daidzin, Genistin, and Coumestrol that are usually found in soybeans.

Additionally, the estrogenic activity of Miroestrol and Deoxymiroestrol, which are found in the plant, are about 3,000 times more potent than that of soy isoflavones. Of significant additional importance, Miroestrol and Deoxymiroestrol are found in no other plant anywhere in the world.