Pure natural green tea extract 99% L-theanine has always been a hot-selling product of our Shaanxi Hongda Phytochemistry Company, and our company also produces and supplies Synthetic L-theanine, which we produce and export 50 tons every month. We have achieved long-term cooperative relations with many countries around the world, such as Italy, the United States, Vietnam, Russia, Japan, South Korea, etc., and have long adhered to the tenet of "customer first, best products", and only produce the highest quality raw materials for customers. We believe you will also satisfy with our good quality. Welcome to check with us if you need this. COA Name:Green Tea Extract L-Theanine Botanical Source:Camellia sinensis Appearance:Off-white Powder Active Ingredient:L- Theanine 10-90% Test Method:HPLC Grade:Pharmaceutical Grade Particle Size:95% Pass 80 Mesh Loss On Drying: 5% Ash: 5% Heavy Metal 10(ppm) Arsenic (As): 1(ppm) Lead (Pb): 2(ppm) Cadmium(Cd): 2(ppm) Mercury(Hg): (ppm) Total Plate Count : 1000cfu/g Total Yeast & Mold: 100cfu/g Package:25kg/Drum Shelf Life:2 Years Certification:ORGANIC/FDA/BRC/KOSHER/HALAL/ISO9001/ISO22000