Written Laser Hair Removal Practice Exam

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Ace your laser hair removal certification with our comprehensive practice exam. Featuring multiple-choice questions, detailed explanations, and hints, get the preparation you need to ensure success.

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What wavelength does the Ruby crystal use?

  1. 650 nm

  2. 694 nm

  3. 755 nm

  4. 800 nm

The correct answer is: 694 nm

The correct answer is B. 694 nm. The Ruby crystal uses a wavelength of 694 nm. This specific wavelength is well-absorbed by melanin, the pigment in hair follicles, making it an effective choice for targeting and destroying hair follicles during laser hair removal treatments. The other options (A, C, and D) do not correspond to the wavelength typically emitted by the Ruby crystal and are not commonly used for laser hair removal procedures.

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