The Fraxel laser is probably one of the best devises for treatment of facial brown spots in darker skin types. It must be combined with good skin care including a lightening cream. You also must practice meticulous use of sunscreen. The laser treatment would require at least 4 sessions at one month intervals and perhaps a few more. I would set your expectations at improvement, but you could see better. On the flip side to that however is that some spots are highly resistant to therapy. Please feel free to give us a call and set up an appointment for further information.