Colorado Esthetician Written Practice Exam 2026 – Comprehensive All-in-One Guide for Exam Success!

A Woods Lamp is the correct answer because it is specifically designed to illuminate skin conditions that are typically invisible to the naked eye. A Woods Lamp emits ultraviolet light which can highlight various skin conditions such as pigmentation issues, bacterial or fungal infections, and other skin irregularities. Blue LED light is often used for acne treatment, electric current is commonly used for facial treatments such as microcurrent, and a voltmeter measures electrical potential difference, none of which are specifically designed to illuminate skin conditions like a Woods Lamp.