You don't have to be a fairy to have luminous, glowing skin. All you need is a great luminizer. Just a little bit creates a gorgeous lit-from-within look, and it's incredibly versatile. (Fuller-looking lips, anyone?) The key, as always, is proper application - and fortunately, this is one makeup product that anyone can master. A little goes a long way, so to avoid looking the part of Sookie Stackhouse's shiny fairy nightmare, watch Susan explain how to use luminizer to light up your look.