This product is the dried mature seed kernel of Cannabis sativa L., also known as: cannabis kernel, fire hemp, thread hemp seed, marijuana and so on. It is a commonly used traditional Chinese medicine in the category of moistening the lower part of the body, with the effect of moistening the intestines and laxatives, nourishing and nourishing the deficiency. The main treatment of intestinal dryness, constipation and other conditions. Because of this product more fat, nature and calm, both tonic effect, often used for the elderly Jin dry, after the disease Jin loss and postpartum constipation caused by blood deficiency. Modern pharmacological studies have shown that: flaxseed has lower blood pressure, blood lipids, analgesic, anti-inflammatory, anti-thrombosis and other effects. Mainly produced in northeastern, central and southwestern China. Now most parts of the country are cultivated.