Great on its own to brighten the lid and eye or to get more staying power from liner. A little bit goes a long way - best to use a brush and apply sparingly.
I love Trish McEvoy and would not buy it anywhere but from Nordstrom. Her products are the best and they work, I get so many compliments on my makeup and my eye shadows all the time. her products actually make me look so much younger, I love her primer.