Why might some clients require maintenance treatments after initial laser hair removal?

Clients may require maintenance treatments after initial laser hair removal primarily to address hair that was not effectively targeted in earlier sessions. This is because hair grows in cycles, and laser hair removal is most effective during the anagen (growth) phase of hair follicles. Not all hair follicles are in the same phase at the same time, which means some may have been missed during the initial treatments. Maintenance sessions can target these missed follicles, ensuring more comprehensive hair reduction over time.

The process of hair removal is gradual, and as hair continues to grow, new hairs may emerge from dormant follicles or those that were in different growth phases during prior treatments. Regular maintenance helps to achieve optimal results and maintain smooth skin by catching these hairs during their growth phase.