high quality;favourable price stable production ability heath drink food;highly-efficiency services welcome to send inquiry! Product Name: Green Tea Extract(L-theanine)Latin name: Camellia sinensis O. Ktze.Active Ingredients: L-theanineCAS#:[34271-54-0]molecular formula:C7H14N2O3Specification: 20%,30%,40%Package: Cardbord drums, with double aseptic food poly bags inside. 25kgs/drum.Storage Conditions: Tightly sealed in a clean, cool, dry area. Keep away from diret light.Plant used: 100% natural or organic dried green tea leafProduct type: Powder, Granular or CapsuleSolubility: good soluble in hot water. Brief description:Theanine (l-theanine) is an amino acid found in ordinary tea leaves from Camellia sinensis (also known as Thea sinensis, hence the name theanine). It is also found in other species of Camellia and in the edible bay boletes mushroom Xerocomus badius, but is otherwise rare in nature. L-theanine has the reputation for promoting mental and physical relaxation-decreasing stress and anxiety-without inducing drowsiness. Function:1.improving learning performance, heightening mental acuity, and promoting concentration; 2.acting antagonistically against high doses of caffeine; 3.calming nervous agitation; 4.lowering blood pressure; 5.diminishing symptoms of PMS 

20%, 30%, 40% green tea extract (L-theanine)