L-theanine supplements could interact with some anti ... Tea's combination of caffeine and L-theanine can give you a calm yet ...

We found that the Sports Research Double Strength L-Theanine Supplement is a great way to replace caffeine and energy drinks. It helps us feel more relaxed, focused, and alert without the jitters ...

Know that caffeine supplements may not provide the same beneficial compounds you might get from natural sources. L-theanine, which is a compound that is helpful for attention, can be found in ...

Some L-Theanine supplements may also contain other ingredients, such as caffeine or herbs, that can enhance their effects. Be sure to research any additional ingredients and their potential ...

Medically reviewed by Melissa Nieves, LND L-theanine benefits may include helping you relax, de-stress, and sleep better.