Hi mz,
I have had much success in treating pore size, acne scars, and chicken pox scar skin surface irregularities with Fraxel re:pair laser. Patients have had very impressive improvement in skin texture and scars after one treatment. My patients are all told that they may require more than one treatment (2-3) to reach their desired results depending upon the extent of the scarring.
Though I have no personal experience with Pearl, the deep Pearl laser has shown good results. The older Pearl is too superficial of a treatment to effectively treat scarring. I have no experience or opinion on Laser Genesis.
Good luck and be well.
Dr. P



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