I've tried l-theanine after finding it was the active ingredient in those "neuro bliss" drinks (and having noticed a positive effect, placebo or otherwise, from

I've tried l-theanine after finding it was the active ingredient in those "neuro bliss" drinks (and having noticed a positive effect, placebo or otherwise, from them). I honestly didn't notice a whole lot of difference taking the extract solo, but I'll give it another shot as I still have a bunch of them. Thanks.