Although hair removal from hair follicles destroyed by laser waves is permanent, some hair in the targeted area still will grow back. To reduce the number of remaining hair, and obtain the maximum result of the laser hair removal process, the laser treatment sessions shall be repeated over time in a specific timing plan.
In general, the number of hairs that grow back and the percentage of the laser treatment success depend on several factors such as hair type, quality of laser machine and the skill of laser technician.
The people who want to remove almost all the hair may need several treatment sessions and they should be patient. If hair type is too fine, or it is too light, it is better to choose other hair removal methods.