I have been using Obagi product for 3 1/2 weeks. I only had some peeling for a week. currently, I have no peeling, itching, redness, etc.... However, there is also no major chagnes in my skin either, maybe a little glow. I wanted to get rid of my dark spots/ age spots, but in fact it seems like i have a few more now. Should I go to the moderately aggressive level? anyone has a suggestion? thx