Solaray L-Theanine 200 mg 45 Plant Capsules is a dietary supplement based on L-Theanine. L-Theanine is an amino acid with calming and relaxing properties. It allows to reach a state of relaxation and promotes a good quality of sleep without having a sedative effect. On the contrary, it increases alertness and attention, which is why it is used by students during exam periods, business people, as well as children with hyperactivity and attention deficit disorders. 1 capsule per day outside of meals with a glass of water. Indication: Dietary supplement based on L-Theanine. The American Low Value Shipment Regulatory Modernization Act is active since March 2016 and increases the duty and tax free value of goods American citiziens could import from other countries by mail from $200 to $800 as well as no formal customs procedures are required. The American Low Value Shipment Regulatory Modernization Act is active since March 2016 and increases the duty and tax free value of goods American citiziens could import from other countries by mail from $200 to $800 as well as no formal customs procedures are required