Candela Gentle Laser is a flash lamp excited alexandrite system designed for hair removal and for the treatment of dermatological vascular lesions. Pulsed laser energy at a nominal wavelength 755 nm can be used for both medical applications. This wavelength allows for maximum energy absorption in the irradiated site (hair, lesions) and minimum absorption in the surrounding tissue structures. Moreover, the wavelength of the laser pulse is controlled to be equal to or less than the thermal relaxation time of the irradiated tissue, for the purpose of minimal heat transfer to the surrounding tissue.
The GentleLase device uses a system of dynamic cooling DCD from the Candela brand. This ensures a controlled release of a dose of cryogen– in order to relieve pain – on the skin of the patient, which is followed by a laser discharge a few milliseconds later.