98% Trans-resveratrol Giant Knotweed Extract

We are offering 98% trans-resveratrol giant knotweed extract, giant knotweed extract powerful natural anti-oxidant and cancer inhibitor, anti-inflammatory giant knotweed extract is extracted from polygonum cuspidatum sieb by ethanol and water. Part used: rhizome benefit: 1. Natural anti-oxidant to eliminate free radicals and, anti-aging; 2. Anti-atherosclerosis; 3. Treat coronary heart disease, ischemic heart disease and hyperlipidemia. Specification: 50% - 98% trans-resveratrol by hplc