How does the laser work?
On anodized aluminum (like the Nano, Powerbook, Macbook Pro, Iphone, and Ipod Mini) the laser removes the anodized coating to reveal the raw aluminum. On stainless steel (most iPods other than minis), the laser fuses a special treatment to produce a sharp black contrast to the polished stainless steel. On plastics (most laptops and mobile phones) the top layer is removed to reveal the layer below, which is usually a lighter color.
The alexandrite laser creates a beam of laser light that reaches just below the surface of the skin where it delivers a controlled amount of therapeutic heat to the hair follicle cauterizing its blood supply, thus preventing the hair follicle from producing any more hair. The wavelength of the lasers light is attracted to the melanin pigment in the hair causing it to heat up, yet it is minimally absorbed by surrounding lighter skin and other tissues. Candelas patented Dynamic Cooling Device (DCD) technology protects the upper layers of your skin with a cooling burst of cryogen. Together, the long-pulse laser and DCD cooling offer optimal treatment with minimal side effects.