Laser hair removal is one of the most popular cosmetic procedures in the world. If you live in Bellevue or nearby — it makes sense to understand how it works and what to expect before your first session. How Does Laser Hair Removal Work? The laser targets melanin — the pigment in the hair follicle. Light energy converts to heat and destroys the follicle without damaging the surrounding skin. After a full course, hair stops growing permanently or becomes significantly thinner.