Last updated: March 2026
What Is Waterline?
The waterline is the inner rim of the eye—the moist strip of skin between the lashes and the eye. Liner or pencil can be applied there for definition.
Applying product to the waterline can make eyes look bigger (nude or white) or more defined (black or brown). Use products labeled safe for the waterline to avoid irritation.
Tips
- Use a waterproof or waterline-safe pencil. Nude on the lower waterline can open up the eye.
See it in action
Tutorials that use or demonstrate this technique: