In laser hair removal, which characteristic of light hair poses a challenge?

The characteristic of light hair that poses a challenge in laser hair removal is its low melanin content. Laser hair removal works by targeting melanin, the pigment responsible for color in the hair. Darker hair contains more melanin, which effectively absorbs the laser energy, allowing for efficient destruction of the hair follicle.

In contrast, light hair has less melanin, resulting in reduced absorption of the laser energy. This can make it more difficult for the laser to effectively target and disable the hair follicles, leading to less effective treatment outcomes. The low melanin content means that there is not enough pigment for the laser to effectively latch onto, reducing the overall efficacy of the procedure for individuals with lighter hair colors.