I have used the Nip&Fab Vitamin C face wash followed by the serum for a couple of years, always loved it. Felt refreshing on my skin, followed by Protect&Perfect. But Nip&Fab have changed the serum ... it no longer feels light on my skin, it makes my skin pill when I follow it with face cream. They're calling it a 'new and improved formula', sigh .. So I need new serum recommendations please. I am using the face wash still, followed by the usual face creams and they feel good but it just feels like I'm "missing" something?