Polygonum multiflorum Thunb. , also known as Polygonum multiflorum Thunb. , divided into red and white, used as the root of Polygonum multiflorum Thunb. Wild Polygonum multiflorum grows very slowly. Polygonum multiflorum Thunb can be divided into raw Polygonum multiflorum Thunb and prepared Polygonum multiflorum Thunb. Slice directly for medicine. It is made of black beans cooked, steamed and dried. Their functions are different: Polygonum multiflorum Thunb. has the functions of detoxicating and eliminating carbuncle, moistening intestines and relaxing bowels, and is often used to treat carbuncle, rubella, itching, intestinal dryness and constipation; Radix Polygoni Multiflori Preparata has the effects of nourishing liver and kidney, nourishing essence and blood, blackening hair and strengthening bones and muscles, and can be used for treating blood deficiency and sallow, dizziness and tinnitus, premature gray hair and beard, soreness of waist and knees, numbness of limbs, metrorrhagia and leukorrhagia, and chronic malaria.

The famous anti-aging prescriptions "Shouwu Pill", "Qibaomeizhuadan" and "Songshan Shouwu Tea" are all made from Polygonum multiflorum Thunb. The use of Polygonum multiflorum Thunb can improve the signs of aging in middle-aged and elderly people, such as white hair, tooth loss and senile plaque. , promote the improvement of human immunity, and inhibit the deposition of "lipofuscin" in body organs that can make people aging. Polygonum multiflorum Thunb can also dilate coronary arteries of the heart, reduce blood lipid and promote the production of red blood cells, so it can prevent coronary heart disease, hyperlipidemia, senile anemia, brain decline, signs of premature aging and so on. The dosage of Polygonum multiflorum Thunb is 10 ~ 15g per day.