1. 100% Natural 2. Lower Emodin Specifications: -Resveratrol 50%-Resveratrol 98%Latin Name: Polygonum CaspidatumAppearance: Fine Deep Brown(50%), White(98%) PowderPart of the Plant Used: RootCAS No.: 501-36-0Introductions:Resveratrol (trans-resveratrol) is a phytoalexin produced naturally by several plants when under attack by pathogens such as bacteria or fungi. Resveratrol has also been ...