Lip liner is usually used to fill in color to your lips...you
can buy it in many colors, it makes them blend or pop, depending on
the color. There is no damadge done to the lips or any permanent
color stain, unless bought to be that way. Lip Liner comes off just
like regular lipstick, but not easily like some, depending on how
good the brand is, and what condition the lip-liner stick is in.
Usually a clear, glossy lip-gloss is used over the Lip-liner, or a
lip gloss of choice, but that is optional. Hope this helped [: