The Derma 20 laser is an Erbium laser (2940nm); not the most recently manufactured laser, but extremely solid and adaptable. With its 4mm spot it is used in pulse mode to enhance its ‘cold laser’ qualities. In fact, the wavelength of 2940nm has the greatest known affinity for water. When this laser’s energy impacts the skin (which is mainly made of water), it causes its immediate vaporisation without releasing heat into the tissue. For this reason the superficial layers of the skin can be removed without the release of heat, and therefore healing time is reduced. This laser is also used to remove the carbonous residues left by other ablative lasers, in order to reduce healing time.
Lumenis Derma 20
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