Ls Magazine Site List Where Can I Buy L Theanine?

Where can I buy L Theanine? - ls magazine site list

I read it was shown in a magazine health L Theanine be beneficial in reducing stress, and I would like to try some, but I refuse to buy the product online and can not find in the food stores like Holland and Barratt. If anyone knows a shop where you can buy L Theanine, or know of a trusted Web site, you can buy from you would be very grateful for the response. Thank you in advance.