Most clients report a 70% or greater improvement over the duration of their course of treatments for pigmentation removal. Superficial pigment (i.e. sun spots freckles etc.) are the easiest to treat. A satisfactory result is usually seen within 2- 3 treatments. Pigment that is deep or dermal can take up to 6 treatments or more and a strict skin care regime must be followed. Superficial pigment that is treated is unlikely to reappear if the area is protected at all times from UV exposure. Dermal pigment can arise at any time due to hormone changes, medications, medical conditions etc.