A circle of lips outlined by a lip liner with a color difference, filled with different colors of lipstick. In fact, the use of lip liner is like this.
If your lips are thin and uneven, then a lip liner can fill your lips more than a lipstick. Fill the entire lip with a lip liner, and also make the uneven area more evenly filled. This is the effect that lipstick can't achieve.
If you prefer to use a moisturizing and shiny lipstick, then you should know that moisturizing lipstick is more likely to fade than matte lipstick. If you want to moisturize your lipstick for a longer time, use a light color before applying lipstick. The lip liner is the best for lasting results.