What is the primary purpose of photothermolysis?

The primary purpose of photothermolysis is to destroy hair using light and heat. This technique utilizes specific wavelengths of light that are absorbed by the melanin in the hair follicles. The energy from the light is converted into heat, which effectively damages the follicle to inhibit future hair growth. This process is foundational in laser hair removal methods, where targeting the hair's pigment minimizes surrounding skin damage while maximizing the destruction of the hair follicle.

The other options do not accurately reflect the function of photothermolysis. For instance, enhancing hair growth contradicts the goal of hair removal, while softening the hair does not address the actual process of destruction necessary for effective removal. Maintaining hair's natural color is unrelated to the purpose of this treatment, which focuses on the intentional elimination of unwanted hair.