1. To increase sperm secretion and stimulate sexual desire 2. To have antiarrhythmic action and to relieve asthma 3. To lower Resveratrol is a kind of potent antioxidant derived from a kind of perennial herbnamed Polygonum cuspidatum Sieb.et Zucc.mainly used as supplement for health care and pharmaceutical products. Specification:Description: Japanese Knotweed Extract ResveratrolCAS No.: 501-36- ...