Written Laser Hair Removal Practice Exam

What is the wavelength of Nd Yag lasers?

1. 755nm

2. 810nm

3. 1064nm

4. 800nm

The correct answer is: 1064nm

The wavelength of Nd:YAG (Neodymium-doped Yttrium Aluminum Garnet) lasers is indeed 1064 nanometers (nm). This specific wavelength is significant in laser hair removal because it penetrates deeper into the skin than shorter wavelengths, making it effective for targeting hair follicles located in the deeper layers of the dermis. The Nd:YAG laser is particularly useful for treating a broader range of skin types and can also be used to address various vascular lesions. In contrast, the other options represent wavelengths associated with different types of lasers used in hair removal and other skin treatments. For example, 755 nm is typically associated with the Alexandrite laser, which is effective for lighter skin types and finer hair. The 810 nm wavelength is often linked with diode lasers, which are versatile and can treat various skin types, if the correct settings and safety measures are applied. Lastly, 800 nm is not a standard wavelength for laser hair removal and does not correspond to a specific, commonly used laser type. Understanding the specific wavelength and its applications helps practitioners select the appropriate laser for individual client needs, enhancing treatment effectiveness while ensuring safety.