Skin pigmentation marks are a build up of melanocytes(cells containing melanin) under the skin typically refered to as freckles and age spots on the hands, face and body areas. The light pulses produced by the laser can feel similar to the flicking of a rubber elastic band and for most people is not too comfortable. Immediate darkening is noticed after treatment. For 7-10 days the area will look like a dark scab which eventually sheds off. Shallow pigments can be removed comfortably in three sessions. Deeper pigments will take longer, depending on the layers of the skin they extend to.