The Obagi Blue Peel is an in-office procedure designed to significantly improve the appearance and health of your skin. Using a low concentration of the chemical trichloroacetic acid (TCA) mixed with a special blue base to slow penetration, the Obagi Blue Peel allows your doctor to monitor the appropriate depth to effectively remove thin surface layers of aged and damaged skin from the face. These dead skin cells are replaced by healthier ones, allowing the skin's own clarity and tightness to resurface.