What types of lasers are commonly used in hair removal?

The selection of diode, Alexandrite, and Nd:YAG lasers as commonly used lasers in hair removal is grounded in their specific wavelengths and effectiveness at targeting melanin in hair follicles.

Diode lasers operate at a longer wavelength (typically around 800-810 nm), which allows for deeper penetration into the skin, making them effective for various skin types, including darker skin. Alexandrite lasers, with a wavelength of around 755 nm, are ideal for lighter skin types and have a faster repetition rate, enabling quicker treatment sessions. The Nd:YAG laser, operating at 1064 nm, is particularly beneficial for darker skin tones, as its longer wavelength minimizes the risk of damaging the surrounding skin while effectively targeting hair follicles.

These lasers work by emitting specific light wavelengths that are absorbed by the pigment (melanin) in the hair. This absorption generates heat, which damages the hair follicle while sparing surrounding tissue, thus ensuring a successful hair removal treatment.

In contrast, other options may include lasers that are less commonly used for hair removal or designed for different purposes, such as ablative procedures, rather than for targeting hair specifically. The CO2 and Erbium lasers mentioned are primarily used for skin resurfacing and not for hair removal. Ruby