Reduce the appearance of dark spots with SkinCeuticals Discoloration Defense. Discoloration Defense is a layerable, daily-use dark spot corrector clinically proven to reduce the appearance of key types of skin discoloration, including hard-to-treat forms such as stubborn brown patches, post-inflammatory discoloration, and post-acne marks. Formulated with 3% tranexamic acid, 1% kojic acid, 5% niacinamide and 5% HEPES, this latest-generation advanced formula improves the appearance of skin discoloration, brightens skin, and evens skin tone in as early as 2 weeks. Everyday elements—including UV exposure, drugs, and some professional treatments—can trigger production of melanin in the skin's lowest epidermal layers. This excess melanin rises to the surface of the skin, causing visible skin discoloration. Discoloration can manifest in a range of ways, including post-acne marks, and stubborn brown patches on the cheekbones, forehead, and upper lip. Discoloration Defense is a -free skin brightening serum that corrects dark spots using a combination of potent and proven anti-discoloration ingredients—including tranexamic acid—to address key types of skin discoloration. Ideal at-home complement to professional skin discoloration treatments, such as chemical peels or non-ablative laser; always consult with a physician for individual regimen recommendations In a 12-week clinical study, Discoloration Defense significantly improved the appearance of key skin discoloration markers: 60% average improvement in the appearance of stubborn brown patches 59% average improvement in the appearance of skin discoloration 81% average improvement in the appearance of post-acne marks 59% average improvement in the appearance of even skin tone Paraben-, fragrance-, silicone-, gluten-, and -free. Due to the concentration of Kojic acid in this formula, a shift in color is expected. This could lead to a light brown or amber color, but the formula remains effective.