I do seem to get a CNS effect. I feel really wired but it’s not an ephedra kinda wired. More like my brain is running at 150%. Great workouts. Just feelin really good for hours. I do a double dose with club soda and that’s it. It’s about the only way I can train early mornings. I did ephedra and caffeine before but that only nausiated me that early in the day.