One week of use, and receiving unsolicited complements on my skin. I tried using make up as well, and it almost wrecked my skin; so I know to use Koriderm on it's own, without make up. I don't need makeup anyway, with Koriderm making my skin look this good! My skin hasn't looked this good since I was a teenager! Koriderm is quick and easy to use, so it is easy to follow the routine of using it each morning and evening, and I only need a small amount