Regret seeing this doctor. I came in to have aging brown spots removed on my upper check. Not even very dark. Now, I have had this done once before at another office that used a laser and the spots went away....vanished in one week. This doctor swore that nitrogen applied with just a q-tip would be as affective, cheaper and here I sit almost eight weeks later with worse brown spots and have to go back to my first dermatologist to have this corrected. Guess you get what you pay for. I will not go back hear or refer anyone to this office. Don't trust him.