I'm a mouth breather living in weather in the teens. I wake up every morning to painful, peeling lips. Despite regular scrubbing and slathering myself in salve, I kept hoping for something more. Something that would smooth and plump enough that I could actually wear lipstick.
And behold, on an impulse, I got this one from Sephora. It's a sheet mask, but just for your lips. After wearing it my lips felt moisturized from the inside, kind of like my skin feels. They felt soft, plump, soothed. The were flush with healthy color - I didn't even need lip gloss.
Strongly recommend: Sephora Lip Sheet Mask in Rose