PROBLEM TO BE SOLVED: To provide an agent that can enhance emission of α2 waves and improve concentration power while avoiding a user's burden even for daily ingestion, and to provide foods and beverages containing the agent.;SOLUTION: The concentration power improving agent contains theanine, pyroglutamic acid and caffeine. Foods and beverages containing the concentration power improving agent are also provided.;COPYRIGHT: (C)2012,JPO&INPIT
展开▼
