Nope, not on any of their other gear, I'm using 400mg of QGL EQ a week and 500mg of Omna's a week. Johnny B, I've used QV, Fort Dodge, Ttokkyo, and Sydgroup before and this is by far the best out of the one's I have used. No pain at all, my hunger is through the roof, pumps are incredible (I was out racing around on my dirtbike the other day on a motocross track, and my damn forarms were sooooo full of blood it was getting hard to hold on), and I am def noticing some increased vascularity in my forearms/biceps.