What is L-Theanine? L-Theanine is an amino acid commonly found in tea leaves (Camellia sinensis) structurally similar to the essential amino acid glutamine. It\'s a popular natural supplement used for cognitive enhancement and to reduce the negative side effects that are associated with caffeine consumption ie. \'jittes\'. The supplement form of the substance is extracted and purified to produce a fine white powder. It is widely known for its neuroprotective benefits and its unique capability to cause a state of focus and mental clarity, while also enhancing feelings of calm and relaxation. This is all achieved without feelings of drowsiness associated with similar supplements. This product contains 50g of L-Theanine powder (5-N-Ethyl-Glutamine), packaged in ISO licensed facilities.   What Are The Benefits Of L-Theanine? Reduces the negative side effects of caffeine, such as \'jitters\'. Promotes mental clarity. Promotes feelings of calm and relaxation. Improves focus and concentration. Improves blood flow to the brain.   How Much Should I Take? The recommended dose of L-Theanine is between 100 and 400 mg daily. When trying a new supplement for the first time, it\'s always best to start with a lower dose (100mg) and work your way up slowly over the course of a week or 2.