Obagi Nu-Derm Exfoderm Forte is an exfoliating lotion that contains lactic acid and glycolic acid in a soothing base to smooth and tone rough or damaged skin. It is formulated to enhance the activity of hydroquinone and tretinoin. Obagi Nu-Derm Exfoderm Forte is recommended for normal to oily skin. Use Obagi Nu-Derm Exfoderm for normal to dry or sensitive skin.