l-Theanine features high quality theanine as Suntheanine®, the brand which has been used in scientific studies. l-Theanine is a constituent of green tea. Suntheanine® provides only l-theanine whereas other brands may not be as pure or active. In one study, only Suntheanine® contained pure l-theanine whereas generic ...
Please click Accept Cookies to continue to use the site