Hello and thank you for your question. As stated by one of our colleagues, it is difficult to give you a cost estimate without a personal consultation. Using the PicoSure laser by CynoSure has yielded great results for our patients in treating both sunspots and acne scars, but the in person (complimentary) consultation is key, as that is how we determine the treatment plan including how many treatments are recommended, how much laser energy will be used per treatment (treating the entire face versus only select spots), how often the treatments should be spaced apart to yield the results you are seeking. Although costs can vary widely between practitioners, we are seeing a cost of about $400-$450 being typical for a full face PicoSure treatment, (per treatment). Some practitioners do offer preferred pricing when you commit to a series of treatments. We usually see the best results with 3-4 treatments. Be sure to ask for a free consultation with an experienced clinician. All the best to you!