Open Question: if i take reflex one stop, will i become fat or lose my abs ?

im 6ft and 12st. i go gym 3 times a week and do mainly compound exercises workouts. i also play football once a week for an hour and its intense. i recently braught reflex one one stop protein shake. it contains creatine and i hear its bad for you and is like steroids ? and makes you fat. will i become fat and lose my abs if i take this shakes ?