i have a great experience with l theanine and l carnitine, i have ADHD and while getting diagnosed with that i have explained my doc that stutter is something that i need to fix and he made me try the l theanine and l carnitine and also some others stimulants but that stimulants have me side effects and didn't work but the thing is the day i took the l theanine and carnitine i have seen difference in that day itself in just few hours actually i have taken in pills and with early stomach early morning after taking it for couple of weeks my doc made me try the stimulants i don't know why, i thought that nootropics can't make it to long term but i have left the nootropics and stimulants as i thought of i get habituated to it i may get the stutter very bad after i lose the power of it , but after a year i have tried em again [for just couple of weeks without and consultant] and this time my stutter got reduced to 50% or more and the results are still with me even after i am not taking them any more if this did last till my life iam so happy to L- theanine but i have this fear that i results may disappear after few weeks or my stutter could get even worse. please guys tell what happened to the guys who tried it 5 years ago in this thread is so necessary to me