A new laser device that can make hair follicles dormant, thus arresting the hair growth for weeks ahead, has been developed by Philips. The Razor light technology hits the hair follicle deep inside the skin.

Product Features
a. The device delivers short, weak pulses of infrared light stops the hair follicle from growing.
b. The source of light is a halogen lamp at a wave length of 600-950 nanometre.
c. The Razor light device can be used on all kinds of skin types and light can be controlled at different wavelengths.
e. The recommended number of treatments are 3 over a 2week time frame and patients can see a reduction of 90%.

Source: newscientist.com