Theanine (L-Theanine) is a unique free amino acid in tea, and theanine is glutamic acid γ-ethylamide. Theanine content varies with the variety and location of tea. Theanine accounts for 1% to 2% of the dry tea. Theanine is a white needle, soluble in water. With sweet and refreshing taste, is the taste of tea components. Theanine is an abundant non-protein derived amino acid that was first isolated from green tea leaves in the late 1940s by Sakato   L-theanine has been studied as a food additive and functional food in relation to human nutrition. It has noticeable bioactivities including anti-cerebral ischemia-reperfusion injury, stress-reducing, antitumor, anti-aging, and anti-anxiety activities[5, 6]. Cooper[7] stated that dietary supplementation of L-theanine is a feasible way to mitigate reactive oxygen species [ROS]-induced damage. Product Name L-Theanine Specification Extract  10%-98% Synthetic method  99% Fermentation  98% Appearance White Powder Grade Cosmetic Grade/Food Grade MOQ 1KG Storage Conditions Store in cool & dry place, Keep away from strong light and heat. Sample Available 1. Dietary Supplement: L-Theanine can be used in functional foods and health products, the most common dosage forms are oral capsules and oral liquids 2. Food Additive: L-Theanine can be used as a quality modifier for beverages, improving the quality and flavor of tea beverages in beverage production. Such as wine, Korean ginseng, coffee drinks. 3. Cosmetic Raw Materials: L-Theanine plays a great role in skin care products and has an excellent moisturizing effect. It can be added to moisturizing skin care products to maintain the water content of the skin surface; it also used as an anti-wrinkle agent, which can promote the production of collagen, maintain skin elasticity, and resist wrinkles. 1)L-Theanine Powder can  reduce blood pressure, blood sugar, blood lipids 2) L-Theanine Powder can remove radicals and anti-aging 3) L-Theanine Powder can enhance the immune function and prevention of colds