There is a product by Dermalogica that is meant for lines around the eyes as well as those vertical lines around the lips, and it truly makes them seem to disappear. (But they don't actually vanish, some fading but mostly, it's just a topical disguise. Still, it's a great disguise, it conceals them completely!)It's called"Dermalogica Multivitamin Power Firm, for Eyes and Lips." It has a silicone agent in it and just plumps and fills the lines up as from within.
Prescriptives Line Filler is also excellent, and does essentially the same thing.