These studies have shown that Pueraria mirifica contains estrogenic substance miroestrol, which can be found in the inter-connected tuberous roots, which look like chains of round-shaped bulbs. The shape and size of the tuberous roots are diverse and depend on the environment in which they exists. There are nine species of plants in the genus Pueraria in Thailand that look alike, However, the authenticity of Pueraria Mirifica can be clearly verified from the distinct characteristics of the stamen of the flower and its hairy pod. The tuber enable to enlarge and accumulate at least 13 known natural chemicals classified as PHYTOESTROGENS comprising: miroestrol, daidzein, genistin, genistein, B-sitosterol, stigmasterol, coumestrol, pueraria, compesterol, mirificoumestan, kwakhurin and mirificin. In the East, the belief in the miraculous rejuvenating properties of Pueraria Mirifica has been passed down from one generation to another for centuries. The rhizome extract of Pueraria mirifica root powder daily as capsules for 7 days, Human Test: PM root has also been tested in human and was reported in 1961 as a potent estrogen effect.

The Thai medical doctor has tested the crude extract in the patients in the year 1941. The result also showed the promising application of this herb. The Breast Actives Program is the most effective natural breast enhancement program available. The program consists of natural supplements, a topical enhancement cream containing pueraria mirifica and exercise techniques to increase the size and fullness of a woman's breasts. Lower levels of these hormones may result in smaller, less developed breasts.

Actually 80% of underdeveloped breasts may be the result of imbalances in these endogenous hormone levels. Breast Actives contains phytoestrogens (naturally occurring plant estrogen) that promote the reactivation and balance of these hormone levels to stimulate breast growth. Breast Actives' high quality phytoestrogens can be likened to a second puberty for your breasts. Within five to eight weeks the mammary glands are reactivated, spurring the development of breast tissue. During puberty the female breast enhancement bra body naturally produces estrogen which promotes the development of breast tissue.

Estrogen and estrogen-like hormones play a role in determining the size, shape, and fullness of your breasts. During puberty the female body naturally produces estrogen which promotes the development of breast tissue and yielding fuller, firmer breasts (some women may experience this within as few as four weeks). Within three months of use most women experience growth in their cup size: ½ to 2 cups is common continued use may produce growth of up to 3 cup sizes. It should be noted that differences in body chemistry and metabolism make it impossible to provide a universal timeframe for development of larger, firmer breasts. Speed of results will vary from woman to woman.

Each individual herb found in Breast Actives are listed on the Food and Drug Administration’s GRAS (Generally Regarded As Safe) list of safe foods. None of the herbs used in Breast Actives are listed on the Food and Drug Administration’s GRAS (Generally Regarded As Safe) list of safe foods. None of the herbs used in Breast Actives is safe and has been in common use for centuries. The rhizome extract of Pueraria mirifica root extract (Smith Naturals Co Ltd., Bangkok) has potent anti-estrogenic properties against aggressive cell cancer lines in vitro, especially the proliferative estrogen receptor-positive (ER+) breast cancer lines (T47-D, MCF-7, and ZR-75-1) obtained from the MD Anderson Cancer Institute (Texas) and the National Cancer Institute (NCI) at the U.S. National Institutes of Health (NIH). Pueraria mirifica promotes fibroblasts in normal breast cells and inhibits estrogen-dependent breast cancer cells.

Unpublished, 2001, Sawatsri, S., Juntayanee, B., Jitpatima, S., Boonnao, P., Kampoo, C., Ayuttaya, N., Wongyai, and Sidell, N. According to the study conducted at the School of Medicine, Saint Mariane University, Tokyo, Japan by Kuramoshi, T. and Smitasiri, Y. about the preliminary study of Pueraria mirifica in Japanese females, 50 healthy menstruating volunteer females, ages 20 to 49, were given between 100 to 600 mg orally of Pueraria mirifica contains " phytoestrogens " (Hormone from Plant) comprising isoflavones (daidzin, daidzein, genistin, genistein and puerarin) and others such as miroestrol and its derivatives, beta-sitosterol, stigmasterol, coumestrol, puerarin, mirificoumestan, kwakhurin, mirificin, b-sitosterol, alkane alcohol, fat, and sugar. It has been reported that Pueraria mirifica root powder daily as capsules for 7 days, two weeks after menstruation. No reports of abnormally heavy, severe, or missed menstruation were recorded.

Animal Test: There were reports during the year 1960-61 from the British researchers to test the effects of miroestrol the key chemical from this herb in the ovariectomized and the premature female rats. The results showed the estrogenic effects of this chemical. It implied that the sythetic estrogen or animal estrogen or even human estrogen could be substituted by this chemical..