Definition: Lip liners are primarily used to outline the lips, creating a precise and defined shape.

Enhanced Lip Shape: By carefully lining the lips, lip liners can correct asymmetry and create the appearance of fuller lips. They provide a guideline for applying lipstick or lip gloss evenly.

Blending Ability: They are designed with a blendable formula, allowing them to seamlessly blend into lipstick or lip gloss for a more natural look.