I have used MAC Studio Finish Concealer in NC20 for about 6-7 years, more or less. It is a daily staple- great full-coverage. It's decent on it's own, but will sink into fine lines throughout the day. (Under they eye being the key area, here) Recently hitting age 32, I was determined to find a solution for this, because I didn't want to switch concealers.SO- I found one, and this concealer is at it's BEST when set with a translucent setting powder, like DermaBlend. It is flawless- mine doesn't move even in the horrible heat. I get a solid 8 hours wear out of it. Beyond that, in the summer..touch-ups are needed. But to me, this is a small miracle. {BTW, DermaBlend translucent setting powder basically changed my life} I like it!