Charlotte Tilbury, The make up artist of Make Up Artists. I have not tried many of her products, one Lipstick -So Marilyn (which I love) and the highligt and contour palette.
But this little product I really like! It comes in two steps, one side has a lift, under eye cream and the other an illuminating eye brightener which I feel is kinda like a highlighting concealer. the first step gives a nice cooling tingeling feeling and the other to cover the darkness under your eyes, I've had it on for a while now and it has stayed on pretty well :)
The only thing I would say I don't like is that the pump gives just a liiiiittle too much of product, I feel like I could definitely use half of what comes out of the wand on my both eyes! But it really is a great product, let's see for how long it lasts on my face and in the tubes!
Also in general, I feel Charlotte really puts in thought and research in her products. Some take about 5 years to develope, that's what I call dedication! A real pro! Available here!