Your skin is the largest organ of your body and because it is on the outside it is the first thing people see so, how do you hide stretch marks or other skin imperfections? One way is to use concealers.
The problem with a lot of the concealers you can buy over the counter, though, is that they are heavy and usually end up caking in your wrinkles and lines making you look even more hideous than you did without it. Just kidding about the hideous part, but they can make you look worse than you would with nothing at all.