Natural Factors Suntheanine L-Theanine for Calm*, 200 mg, 60 Chewable Tabs

Customers find the L-Theanine supplement effective for calming nerves and anxiety, with one noting it works better than pharmaceutical alternatives. The supplement receives positive feedback for its taste, quality, and convenience as a chewable form, while also helping with concentration and mental clarity. Regarding side effects and value for money, opinions are mixed - while some report no drowsiness and consider it good value, others experienced headaches and insomnia, and some find it pricey.