Why is there so much hydroquinone in the Obagi Nu-Derm products?
Hydroquinone is a lightening agent and Dr. Obagi has formulated three different products to treat different layers of skin. It is a cascade effect. What are the risk, complications and contraindication of Obagi Nu Derm? Risks are usually attributed to the ingredients, Hydroquinone and tretinoin. HQ when used in very high strengths (much higher than what is in the Obagi Nu-Derm system) has been connected with ochronosis. Ochronosis is the condition when black spots form in the epidermis. It is mostly seen in persons of ethnicity (Africans and Asians have used this to lighten their skin, hence its banned in Africa and Asia). Tretinoin initiates exfoliation of the outer most layer of skin, yet thickens the epidermis overtime and reportedly the upper layers of the dermis. However, very aggressive use can temporarily thin the epidermis. Aggressive use can also cause intense irritation, sores, and blister-especially near the corners of eyes and mouth and around nose. Obagi and tretinoin use
