This high-potency serum utilises active ingredients including Niacinamide and Hepes, which are clinically proven to reduce the appearance of key types of skin discoloration. The daily-use dark spot corrector improves the appearance of key types of skin discoloration, including stubborn brown patches and post-acne marks. Benefits of SkinCeuticals Discoloration Defense Serum: Discolouration & dark spot corrector Formulated with Niacinamide & Hepes Achieve brighter & more even-looking skin Target stubborn brown patches & post-acne marks Can be used daily Skin discolouration is caused by the production of melanin in skin’s lowest epidermal layers, which then appears on skin’s surface as discoloration, post-acne marks and stubborn pigmentation or brown patches on the cheekbones, forehead, and upper lip.  The synergistic blend of discoloration fighting active ingredients help to reduce the appearance of skin discoloration, brighten skin and minimise reoccurring discolouration with continu