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Other Names : กวาวเครือ Kwao Krua, Kwao Krua Kao, Thai kudzu<br>See also : [[Kudzu]]<br>There are more than 13 related species of Pueraria, but only Pueraria mirifica contains distinct estrogenic activity. Since the active ingredients are concentrated in the root and can only be identified at certain times of the year, and since the estrogenic effect varies based on seasonal changes, many of the Pueraria products being sold contain biochemicals that have been misidentified. These ingredients don’t have the beneficial effects of Pueraria mirifica, so it’s important to purchase the herbal supplement from a reputable company that guarantees the product contains the correct bioactive constituents in the correct ratio, according to scientific studies.<br>See also : [[Kudzu]]