US 9,968,538 B2; Avon Products, Inc. has patented a method to reduce fine lines and/or wrinkles in human skin. It is comprised of, in any order, the steps of topically applying to an area of the skin in need thereof, at least once daily, a first skin treatment composition comprising, in a physiologically compatible vehicle, an effective amount of a retinoid for a first period of time comprising from 6 to 15 days; topically applying to that skin, at least once daily, a second skin treatment compo...