L-theanine benefits may include helping you relax, de-stress, and sleep better. L-theanine also shows promise for cognitive and mental health issues, potentially boosting attention and working ...

L-theanine is an amino acid found in tea. Although L-theanine is associated with several health benefits, no research confirms if it is effective in treating bipolar disorder. L-theanine is a ...

L-theanine (200 mg) L-theanine is an amino acid most commonly found in tea leaves. Researchers have studied it for its ability to promote relaxation and reduce stress without having sedative effects.

L-theanine is also present ... Some people can be sensitive to caffeine, and if you’re impacted by any side-effects such as digestive issues, anxiety or impaired sleep, you may want to choose ...