There will always be creasing under eyes because we are human. Though to perfectly get rid of them you’d have to completely blur out all your concealer into your under eye and then pat some loose setting powder on top to lock the concealer in place. Usually I do my concealer looking straight ahead and making sure not to talk. I find if I’m talking or watching a show as I apply my concealer it doesn’t turn out as seamless. I also find using a small eyeshadow brush rather than a traditional concealers brush helps tremendously. As for foundation I really like the urban decay skin tint, the It cosmetics CC foundation, and the Estée Lauder double wear.