People often take Suntheanine L-theanine for anxiety. L-theanine’s promotes relaxation and has a positive effect on mood for most people. L-Theanine is a unique amino acid found in green tea. When used with caffeine, L-theanine improves reaction time and memory. L-theanine stimulates the brain’s alpha waves. L-Theanine helps getting a more restful sleep.


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