In my experience, ANY laser can cause hypo or hyperpigmentation. It is true that the MIXTO has been designed to minimize this and other side effects that were more common with older CO2 lasers. A lot depends on the patient's skin type and tendencies and the depth and intensity of the laser. Patients at risk for pigmentation problems often benefit from pre and post procedure pigmentation stabilization programs. Thinner skin like necks seem to also be more sensitive than facial skin to pigmentation issues.
Mixto Microfractional laser resurfacing burns extremely small holes in 20% of the treatment area. These holes instantly close.Therefore the top layer on the skin (epidermis) remains intact with a full complement of pigment producing cells ( Melanocytes). Thus, when it is used correctly , it cannot cause Hypo (decreased) pigmentation. The reason for confusion about Hypopigmentation is that the original CO2 lasers burned off the The entire epidermis destroying all of the pigment producing cells. If an unqulified physician went too deep while using traditional CO2 laser, hypopigmentation did occur. The Miracle of blending the CO2 laser with a scanner that produces Micro (extremely small) holes in only 20% (Fractional) of the treatment area Dramatically improved The world of Tightening, Smoothing, Lifting and removing Dark spots on the skin. Now, Patients can get up to 60% tightening, which can last as long as 15 years with only 7 days of painless recovery.
