Q: What does a lip brush do?
A: Gives you a sharper, more precise lip line than applying straight from the bullet, and lets you use up product that a lipstick tube cannot reach.
Q: How do you use a lip brush?
A: Outline the lip line first with the flat edge of the brush, then fill inward. Working from the outside in gives a cleaner edge than filling first.
Q: What can you use instead of a lip brush?
A: A finger works for a soft, blurred lip, but nothing gives the crisp edge a brush does. For long-wear or bold colours a brush makes a visible difference.