When I received this product from Megs (who else?!), I wondered what it was. Since I don’t use foundation, I thought it was an odd present. But now I realize why she would get it for me. First of all, the smashbox Photo Finish Color Correcting $38 is a foundation primer. Its very green colour helps diminish redness and evens out skin. The other colours such as lavender are for Asian skin tones and the apricot is to conceal eye-bags, sunspots and veins. Gosh, I really think I need them all! Anyway, it has a really nice feel and goes on silky smooth. Once the foundation is on, the primer is supposed to help it set and stay in place. I only wear a BB (beauty balm) under my eyes and cheeks. But the BB glides on like nobody’s business. It is really seamless and looks way better than the BB by itself. Apparently you can also use it by itself but I find that it's not fantastic on its own. I say it works best as a primer but maybe that’s because I have a lot of redness on my cheeks. I was really skeptical about this product but as soon as I used it, I changed my mind.