How do Obagi System products compare to the products purchased off the shelf in department stores/supermarkets etc?

Obagi System skin care products pharmaceutical products that work at a cellular level to correct skin cell function. They also contain prescription strength ingredients which means they need to be prescribed to you. Products from retail stores are known as Cosmeceutical products. Cosmeceutical products do not correct skin cells and tend to instead only treat the surface of the skin for a short amount of time.