I want to take superpump 250 Workout/dietary supplement? please answer?

I am 14, 162 and 20% body fat, i have a couple questions, first am i too young, my friends reccomend it and another of mine wants to take it, second will it burn my fat when i work out, and if i do cardio will i be able to run longer because i heard its big energy boost, also i want to know is it unhealthy, because it has 2333% daily value of viatamin b-12 and 1250% vitamin b-6. And also will it help me gain alot of muscle i want to lose 30 pounds of fat and gain more muscle. so please answer, and if u have taken this or anybody you know, please answer asap and that'd be great, oh one more thing, should i take it while im trying to lose the weight, or after ive lost it?