Haya Labs L-Theanine is an amino acid supplement with L-Theanine - a substance which has a strong calming effect and at the same time energizes the body. This unique formula leads to a decrease of mental and physical stress levels; it stimulates the immune system and improves the memory. Benefits: Calms down the nervous system Decreases stress levels Stimulates immunity Antioxidative effect Improves memory Without sleepiness L-Theanine is an amino acid found in the green tea leaves. Due to its ability to effortlessly overcome the barriers and to transmit information to the brain, it affects significantly the mood and the nervous system. Haya Labs L-Theanine increases the levels of serotonin and dopamine in the brain and helps the body to establish emotional and psychological balance. The active ingredient promotes a good mood and decreases stress levels. The daily intake of the supplement protects the nervous system and significantly improves memory. It has a positive effect on the health of the cardiovascular system by protecting the LDL cholesterol from oxidation and supports normal blood pressure. Haya Labs L-Theanine has strong antioxidative properties and stimulates the immune system. It is suitable for people who are under physical and mental stress every day as well as for people who are susceptible to depression and anxiety. The supplement does not cause sleepiness.