How do I make lipstick last longer?

Lipstick lasts longer when you keep the layers thin and the surface smooth. Start with hydrated lips, remove flaky skin if needed, then apply a first layer and blot before adding a second. That gives the color something to grip.

Lip liner helps because it gives the lipstick a boundary and makes feathering less likely. If you want maximum staying power, choose a matte, stain, or long-wear liquid formula rather than a very creamy one. Creamy formulas feel nicer, but they usually trade away some durability.

The other half of the trick is realistic expectations. Even the best lipstick eventually wears off with eating, drinking, and talking. The goal is not to make it immortal. The goal is to make touch-ups easier and the fade more even.

So the short answer is: prep, line, blot, and pick the right formula for the job.

A reliable lip primer is a small investment that makes this easier: lip primer.