I Am 17 Years Old, And I Am 180 Cm

I am 17 years old, and i am 180 cm tall, so will creatine affect my growth at all ? I am not trying to be bodybuilder or something, i am just running every day for about 7 km, and i am trying do define my abs and lower abs, but i am very skinny, i have 74 kg's, so i thought that creatine would do the job, but is it safe ?