Hey guys, I purchased bulk ingredients for my custom pre-workout stack. I've been advised to add L-Tyrosine to it. I've read that it mostly helps with catecholamine release. I haven't really been able to get any sort of adrenaline rush from having heavy weight on my back like I used to. I was wondering if anyone can attest to its effectiveness in facilitating NE, E production.. And also of any other amino-acids that may help with this..