As age creeps in, lipstick creeps out. Feathering lips look untidy and they sort of confirm the age thing. So I saw this and thought, I wonder. So far so good. It kept my lippy from making friends with my lip lines. It's like an invisible barrier. My process was No7; face primer, intelligent foundation,this anti feathering pencil to the outside edge of my lips, lip liner to the edge of the lips then lipstick. Belt and braces was then a mist of fixing spray. That's a full make up face way but I've also just used the pencil on no foundation days without a primer and it works just as well. It being clear doesn't show when you put it on. With make up it just blends in. I'm very impressed and very pleased. Well worth it from my point of view and experience.