If you're interested in the focusing-increasing benefits of L-Theanine, Gyokuro, Matcha, and Silver Needle are all good teas to drink. I get my Gyokuro & Match

If you're interested in the focusing-increasing benefits of L-Theanine, Gyokuro, Matcha, and Silver Needle are all good teas to drink. I get my Gyokuro & Matcha from http://hibiki-an.com/ http://hibiki-an.com/ Silver Needle I had a harder time finding, but I got them from http://chicagoteagarden.com/ http://chicagoteagarden.com/, the tea shop of the OP. Incidentally, they're both delicious.