The subject innovation is so uniformly throughout the scalp through the rotating and scanning does not stay in one place a low power diode laser with a dome helmet shape investigated by further increasing the blood circulation active on the hair loss prevention device to keep the hair loss prevention and health of hair roots will be. The front of the device was composed of a power key, a touch screen panel, the status indicator and the emergency switch from the left side, the touch panel, comprises a feature panel of the on-off and operation begins stopping the selection of the angle of rotation, the irradiation time on, the scan motor . It was equipped with a rear wheel mounted for movement to the lance, and convenient for the balance of the driving position adjusting device and a power connection, positioning the remote control and the bottom. Was placed in a low power diode laser inside the helmet dome surrounding the scalp 8 equal parts (45 degrees each), the upper was the investigation of the upper frame not stay in one place to mount the low-output laser diode of the scan type. Was rotated according to the roller operative to step placing a guide in the bottom of the helmet dome is fixed to the motor was dome helmet according to the rotation angle in the clockwise direction and counter-clockwise position to the guide axis. It is characterized by allowing to pass an equal energy by rotation and by adopting a scanning method using a method of uniformly irradiated to a broad range without concentrating in one place during low-power diode laser irradiation. Was also detected in the scalp is attached to the work get inside dome of the helmet sensors securely to the risks associated with laser irradiation. Low-power diode laser uniformly examine the wide range of enforcement because the treatment helps blood circulation in the capillaries in the optical laser treatment functions can reap the benefits that strengthen the hair and prevent hair loss, strengthen hair roots and scalp care.