A small word of caution for those trying l-theanine. I was on a large amount (800mg a day in 2x400mg doses) for about a year.
Now I’m trying to come off it, I’m experiencing similar withdrawal symptoms to when I came off benzos.
I’m going to taper off it now instead of cold turkey. I’m just going to take 300mg in total a day for a while.
As I said in another thread, luckily I have enough bottles left to taper off, but it could have been tricky if I had actually ran out.