My son uses almay clear complexion concealer he takes a makeup wedge and breaks it in half and uses the rough side and just stipples a thin layer here and there, he doesn't use it all the time, it looks pretty nature when you stipple it on.

When I had a bunch of red marks and pimples a year and half ago I used a neutrogena foundation to cover up all the redness. People probably noticed I had makeup on but I was just happy cause of how much better I looked.