Nu-Derm Exfoderm ForteObagi Nu Derm Exfoderm Forte #4 is a powerful exfoliating lotion that helps create a smooth, radiant complexion. This facial treatment is formulated with 6% glycolic acid and 4% lactic acid, two alpha hydroxy acids that help remove dead skin cells and other dulling debris. Through this process, Obagi Nu Derm Exfoderm Forte #4 helps to diminish the appearance of fine lines and dark spots and create a soft texture. Ideal for normal to oily skin, this