Used this Optimum Nutrition pre-workout for years and it's the best! The best part is this Amino Energy one does not have beta alanine in it (the ingredient that causes the tingle or itch). My favorite flavor is grape but these two - watermelon and blueberry mojito - were good too! The one on the left is a naturally sweetened option (with stevia). You can find it at Amazon and Academy Sports! http://liketk.it/2SCi2 @liketoknow.it liketkit LTKfit LTKsalealert Shop your screenshot of this pic with the LIKEtoKNOW.it app