NP include some samples of Vasocharge with my last order(thanks NP!)and I tried 2 packs this morning. Damn! This stuff rocks! I got an initial tingly flush,similar to a niacin flush for about 20 minutes from the beta alanine which was a little uncomfortable,but the workout was amazing. Clear,focused energy,great pumps,strength,despite not feeling too motivated to begin with. I had to force myself to stop! The lemonade taste is great too. I have tried just about every pre-workout drink on the market,but Vasocharge is my new favorite. Will definitely be getting some on my next order.