Prepare for the Utah Esthetician State Board Test. Study with flashcards and multiple choice questions, each with hints and explanations. Be ready for your exam!

Practice this question and more.


Laser therapy utilizes a form of what type of light?

  1. Ultraviolet Light

  2. Polarized Light

  3. Infrared Light

  4. Visible Light

The correct answer is: Polarized Light

Laser therapy predominantly utilizes a form of infrared light. Infrared light is known for its ability to penetrate deeper into the skin compared to other forms of light. This penetrating ability makes it effective for various therapeutic applications, including skin rejuvenation, hair removal, and treatment of vascular lesions. Infrared light also helps in promoting healing and stimulating collagen production, which are essential aspects of many aesthetic treatments. The other forms of light mentioned, such as ultraviolet light, while important in other contexts like skin analysis or specific treatments, are not primarily what laser therapies utilize. Polarized light is not standardly associated with laser therapy, while visible light, although used in some light-based treatments, does not have the same depth of penetration and therapeutic effect that infrared light provides.