Foundation is meant for covering up uneven spots, not to be worn as a mask. In fact, unless you’re wearing something rather light and sheer, it’s not necessary to cover your entire face. Instead, only apply it where you need it– nose, cheeks, under-eyes, etc. A lot of women use it to cover up blemishes, but that’s what concealer is for!
Aside from applying too much, it’s just as important to make sure you’re wearing the right color. If you’re looking for a good foundation (I’ve tried just about all of them), MAC Studio Face and Body Foundation is my favorite! It provides a low-medium coverage in a natural satin finish. The great thing about it is that it’s made to build-up, so you can apply a single coat for a natural day-time look, and apply more coats if needed for a night out. Visit a makeup counter to get the perfect shade. I wear the N3 and have a light-medium skin tone.