Which of the following is a characteristic of the Alexandrite laser?

The Alexandrite laser is indeed specifically designed for hair removal, making it particularly effective in this field due to its unique characteristics. This type of laser operates at a wavelength of 755 nm, which is highly absorbed by melanin in the hair follicles, allowing for effective targeting and destruction of unwanted hair.

In addition to its primary function for hair removal, the Alexandrite laser's efficacy is also linked to its speed and the ability to cover large areas quickly, making it a popular choice in aesthetic practices. While it can be used for other applications, its design and efficiency in hair reduction are what make it stand out in the cosmetic laser category.

The choices relating to wavelengths and energy levels do not accurately reflect the properties of the Alexandrite laser. Specifically, shorter wavelengths are not suited for darker skin tones, and the laser is not categorized as low-energy, but rather, it is known for its effective energy delivery in the context of hair removal.