Pueraria mirifica, also known as กวาวเครือ Kwao Krua (among other names), is a plant found in northern and north eastern Thailand and Myanmar.

Dried and powdered, the tuberous root of Pueraria mirifica has a history of domestic consumption in Thailand in traditional folk medicine as a rejuvenating herb to promote youthfulness in both women and men and is used widely within the now government-regulated practice of traditional Thai medicine.

The ancient capital of Burma, known then as Pookham but now called Bagan, was one of the most important centers of knowledge in the Asian region until being sacked and partially destroyed by Kublai Khan's Mongol invasion of the late 13th Century.

The benefits of this medicine is to support memory, talk big, and be able to remember three books of the astrology, make the skin smooth like six year old kid, live more than 1,000 years and parasite diseases are not able to be of trouble.Modern knowledge of Pueraria mirifica can be traced to the publication of the booklet containing the reference to the plant's use in ancient times, with the author Luang Anusan Suntara claiming in his publication use of the ingredient reduced wrinkles, got rid of gray hair, improved eyesight and memory, along with other benefits.

[3] Pueraria mirifica contains various phytoestrogens including deoxymiroestrol, daidzin, daidzein, genistin, genistein, coumestrol, kwakhurin, and mirificine,[4] β-sitosterol, stigmasterol, campesterol, and mirificoumestan.