as a primer, its useless... as a brightener, its terrific. you can wear it on its own; its also great to neutralize any darkness/discoloration you have on your lid so when you apply eye shadow, the color comes out truer to whats in the pan. ive bought this time and time again.
great color, application was terrible... streaky, needs 3 coats, and chipped on me after a day. would not repurchase.