It really is fairly obvious that Chal Soon has been utilizing overall performance improving drugs. He has a changed facial structure which only happens whenever someone uses human growth hormone. He also offers huge delts and full muscle bellies that commonly do not happen until you are using steroids. In addition to that, he competes for a bodybuilding campaign which has a drug testing policy which is simple to predict which makes it easy to beat. While he might not admit it proof points to the truth that Chal Soon is a steroid person.