How Laser Hair Removal Works Laser hair removal uses controlled light energy that is absorbed by the pigment in the hair follicle. This light turns into heat, damaging the follicle and slowing future hair growth. Because hair grows in different cycles, multiple sessions are needed to target all active follicles and achieve long-term hair reduction. https://www.enfieldroyalclinics.com.pk/laser-treatments/laser-hair-removal/