Why is it not recommended to use a CO2 laser for hair reduction?

The CO2 laser is primarily used for ablative procedures because it effectively targets water in the skin. While this characteristic makes it suitable for procedures like skin resurfacing and the treatment of wrinkles, it is not recommended for hair reduction for several reasons.

In hair reduction, lasers need to target the melanin in hair follicles for effective results. CO2 lasers do not selectively target melanin; instead, they are absorbed more by water, which can lead to excessive heat production and potential damage to surrounding tissues. The high absorption of water means the laser can cause unwanted thermal effects, leading to pain, overheating, and longer recovery times.

In contrast, lasers specifically designed for hair removal, such as diode or Nd:YAG lasers, have wavelengths that are more effectively absorbed by the melanin in hair follicles. This targeted approach minimizes damage to the surrounding skin and decreases the chances of side effects, making those lasers a safer and more effective choice for hair reduction.