You know the best way to pick out a foundation, make sure the color is the exact shade as your face. Don't test it on your arm because that's not the same as your face. And don't try to cheat it by getting a darker color to make it look like you have a tan because it doesn't work. It just gives you a pancake appearance. And kind of blend it with the contours of your face; your cheek bones kind of blend upward. You don't have to put foundation every where, I don't put foundation everywhere just kind of cheeks, forehead, nose.