The Gentlelase (755nm long-pulsed Alexandrite laser) is one of my favorite laser hair removal devices. Because of it's excellent absorption by melanin (pigment, color), it is very effective for eliminating unwanted hair. Unfortunately, this property also makes it a generally poor choice for darker skin types. While I haven't evaluated your skin, generally I recommend using a long-pulsed 1064nm Nd:Yag laser (such as the GentleYag) for darker skin types such as you describe. This laser allows treatment of the color in the hair, will sparing the color in the skin. We confidently treat even very dark, black (Fitizpatrick type VI) skin with this laser. The risk of using the wrong laser on the wrong skin include blistering, scars, burns, and permananent discoloration. The other "risk" is a provider trying to use the wrong laser on the wrong skin-- so they turn the energy (fluence) way down to avoid blistering-- and you get a poor result! Make sure you consult personally with the physician (board certified in an accepted filed of aesthetic medicine such as dermatology or plastic surgery) who will be treating or directly supervising your treatment; that the physician has lots of experience with laser he will be using as well as other laser systems; and that they have access to multiple laser systems to treat different skin types.