This unique eyebrow pencil has been beloved for over 25 years. This eyebrow pencil has an oil activated formula: color only shows with natural oil that is on the eyebrow. This unique formula consists of a mix of powder, wax, and small amounts of semi-solid oil, a winning combination that delivers the perfect hardness for ultimate precision with a powdery texture that works well with foundation upon application. The result is a natural and defined brow look. Smudge-proof and long-lasting.