This red light therapy massage comb combines infrared light and electric vibration to stimulate your scalp and enhance hair health. With 72 gentle teeth and a 630nm wavelength red light, it deeply massages and nourishes hair roots to encourage fuller, healthier growth. Choose from three massage modes to boost scalp circulation, soothe nerves, and improve sleep quality. Its 6ML liquid reservoir and 8 roller balls evenly distribute hair care liquids while massaging, promoting balanced nourishment and reducing hair loss. Experience a revitalized scalp and stronger hair with this all-in-one portable device.