Obagi Nu-derm Clear 4 Hydroquinone is step 3 of the NuDerm system. Obagi Nu-derm Clear 4 Hydroquinone is part of the skin care system that people have been raving about. If you do not have a local supplier of Obagi products, there are numerous places to buy Obagi online. One of the places I like is BeautyRiche and they have all the Obagi line, including Obagi Clear. If you haven’t used Obagi, I suggest talking to a skin care expert and find out what they have heard about products like Clear. You can also read reviews about the Obagi line and see what other people’s experience has been regarding their own skin care. Obagi is not a cheap product when compared to other skin care products you might find at the grocery store, but in this case you do get what you pay for, and Obagi Clear is worth the costs to many people who had seen success using the product.