What is this wonder cream. After application which I do by spreading a thin layer and patting to absorb, I see a marked difference in about 1 hour. Wow. Just wow. It does leave a slight white cast but I don't care as I use it at night but from the feel it seems as if it could layer undermakeup. I've used this both on top and underneath my moisturiser and have recieved the same results. Nice size which will last well as only a small amount needed. Will definitely repurchase.