Latin Name: Camellia sinensis (L.) O. Ktze. Plant Source: Leaf Appearance: Yellow Brown or White Powder CAS 3081-61-6 Specification: 20%, 40%, 99%ï¼?HPLCï¼? Green Tea Extraction L-Theanine the amino acid in the characteristics of tea is a flavor of the tea material, and more exist in green tea. Theanine, one hand, as nutrition enhancer use in food, on the other hand, the Theanine efficacy of medical has been proven, it has anti-cancer, anti-tumor and lower blood pressure, soothe the nerves and promote brain function and nerve growth etc. Therefore can be used as additives of functional food. For price, specification and other details please contact us.