Pure Encapsulations L-Theanine 60 Veggie CapsL Theanine Temporarily promotes relaxation l Theanine is a unique amino acid originally found in tea. l Theanine has also been discovered as a biologically active compound responsible for promoting relaxation. It acts by decreasing cortisol levels during stress and regulating neurotransmitters activity in the brain. In a preliminary non clinical study, an l Theanine solution enhanced alpha wave production in the occipital and parietal regions of the