Especially the version with taurine, they compete for each other’s absorption, and BA isn’t absorbed well in high doses.
Really it belongs in a creatine supplement more then a preworkout. It’s kind of one of my most hated ingredients because shitty companies put it in with a bunch of stimulant and call it a preworkout, and it takes up space and money from better ingrediants.
I have no idea why they would even put that much in aside from label dressing.
The tingles go away once you hit the saturation point