Laser treatment is used to treat a number of normal and pathological conditions like acne scars, traumatic scars, stretch marks, surgical scars, active acne, facial pigmentation, melasma and hair removal. Laser light is generated by a monochromatic light emission that is sourced from a lasing medium. The polarized characteristics and monochromatic coherent of the laser light beam permit penetration of the deep tissue of the skin. Lasers use heat and light to stimulate the growth of fibroblasts which are cells in the connective tissue that produce collagen and other fibers. More skin collagen means younger, firmer, fresher and rejuvenated skin.