Utah Esthetician State Board Practice Exam 2026 - Free Esthetician Practice Questions and Study Guide

LED treatments provide energy in the form of light that can penetrate the skin at varying depths. This energy stimulates biological processes, such as collagen production and cellular repair, contributing to skin health and rejuvenation. Different wavelengths of LED light target specific skin concerns; for example, blue light can help with acne by reducing bacteria, while red light can enhance elasticity and reduce wrinkles by promoting collagen synthesis.

In contrast, heat is not the primary purpose of LED therapies, as they rely on specific wavelengths of light rather than heat to activate skin responses. Moisture would not be a direct result of LED treatments, although improved skin function may lead to better moisture retention over time. Lightness in a cosmetic context usually refers to brightness or a lighter appearance, which isn’t a direct benefit provided by LED treatments themselves.