So, I'm considering trying out this supplement and I was wondering if any of you have tried it already. Let me know in the comments below...

There have been a lot of many positive comments regarding this amino acid which is found in green tea, along side with ECGC and other catechins. I've been using a green tea extract with a lot of positive perceived effects so I thought this may be a good addition to the stack. 

So, the purported benefits are:

- better mood
- induces calmness
- better sleep
- better concentration
- etc. 

And some potential side effects, though rare: lack of appetite, dizziness, brain fog, and some others - though these seem to happen in rare cases and with very high doses. Again, what are your thoughts on this? Below is a video that goes into good details about it. 
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<center>https://www.youtube.com/watch?v=0E6_w6cRx8Q</center>
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[Cristi Vlad](http://cristivlad.com) Self-Experimenter and Author