After exfoliating lips, your lips become natural red. Therefore, you can use lipstick more smoothly and evenly.
When you use lipsticks, and if the lip liner is slightly darker, your lips will look full-bodied.
If you use the lip liner to fill the entire lip area, you can improve the color richness and prolong the lipstick color. If you add some lip moisturizing cream, lipstick will not move to other areas.
On the middle of your lips, using a high sheen lip gloss will make your lips look plump.