Creatine

its awesome if you like back-ne (back acne) and having inflatable useless muscles…

as for strength and a nice healthy looking build…no good

beer muscles > water muscles

edit: never used it or any other supplement (not even protein drinks or whatever goes in those nasty looking things) and benched 345 consistantly, squatted over 600 (wasnt much for lifting legs), was strong all around, while weighing 180…a good workout routine, and by good i mean BASIC, will help more than anything…