How does the effectiveness of laser hair removal differ by hair type?

The effectiveness of laser hair removal is primarily attributed to the contrast between the hair and skin tones, particularly the pigmentation present in the hair. Dark hair absorbs light more efficiently than lighter hair due to its higher concentration of melanin. The laser targets and heats the dark pigment in the hair follicle, which is essential for the procedure's success in disabling the hair growth.

Since laser treatments work best when there is significant contrast between the hair and the surrounding skin, individuals with dark hair often see better results. Conversely, lighter hair and fine hair contain less melanin, making it more challenging for the laser to effectively target and treat these hair types. This is why laser hair removal is generally not as effective on lighter or fine hairs, confirming that dark hair yields the best outcomes for the procedure.