A type of laser used in cosmetic procedures which delivers powerful pulsed laser light in numerous thin columns. Fractional lasers are either ablative or non ablative. An ablative fractional laser vaporizes the skin surface, the epidermis. A non-ablative fractional laser preserves the epidermis and affects only the dermis. A non-ablative fractional laser is ideal for treatments of scars because scars are located in the dermis.
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