Plant Origin:Arctium lappa L. Specification:4:1 Action:Burdock Root Extract - a herb very commonly used as a general detoxifying agent to help maintain the state of the skin condition, especially by people who have repeated adverse skin problems. Product Name: Burdock Root Extract Powder 4:1 Botanical Name: Arctium lappa L. Plant Part: Roots Extract Solvent: Ethanol/Water Extract Ratio: 4:1 Approx. Appearance:Fine Powder Color:Brown Odor:Characteristic Taste:Characteristic Particle Size:100% through 80 Mesh Moisture:< 5.0% Heavy Metals:< 20ppm Arsenic (As) :< 1ppm Total Plate Count:1,000cfu/G Yeast & Mold:< 100cfu/G E.Coli.:Negative Salmonella:Negative Shelf Life:Two years when properly stored. Storage:Tightly sealed in a clean, cool, dry area. Do not freeze, keep away from strong, direct light.