Olay Definity Restorative Night Cream

This satiny whip gets down to business while you sleep, infusing collagen-plumping, skin-brightening glucosamine "deep below the surface," says N.Y.C. facial plastic surgeon Steven Pearlman. The results are "as good as you get from a more expensive product, without the high price," says L.A. dermatologist Debra Luftman.