Do you need to grow your hair out prior to having laser hair removal? No. You do not need to grow your hair out. Actually you need to be clean shaven as of the night before or the morning of your treatment. That allows for the energy of the laser to travel completely down into the hair follicle, destroying that follicle so that no hair will grow on that follicle again.

Laser Hair Removal: A Clean Shave Is Best Before a Treatment

Nurse Tracy Barlow, who works alongside of Dr. Michael Law, explains why the area to be treated needs to be clean shaven before the laser hair removal treatment.