I have been using this product for a month now and my workout performance has gotten so much stronger.
One of the best Pre-work out supplements I've ever used this product delivers great blood flow and workout performance. The ingredients are simple effective and in quality amounts. Best of all they are backed by real science each ingredient has been shown to increase workout performance or mechanisms involved in muscle growth.
I must admit i do add caffeine, L-carnitine and beta alanine to it depending on my workout/day.