L-Theanine

L-Theanine is a non-proteinogenic amino acid primarily found in the leaves of the Camellia sinensis plant (green and black tea) and in certain species of mushrooms (Boletus edulis). Unlike other amino acids, it is not used to build proteins but instead functions as a neuromodulator. It is widely recognized in the wellness community for its unique ability to promote relaxation without sedation, often described as a state of "calm alertness."