Maria Galland 541 Harmonizing Serum is a targeted dark spot correcting serum formulated to improve uneven skin tone, reduce visible pigmentation and restore radiance. Its advanced 3-action formula works by helping prevent new discoloration, correcting existing dark spots and illuminating the complexion. Rainbow algae extract helps limit the formation of new pigmentation spots, while niacinamide, also known as vitamin B3, works to reduce the appearance of existing dark marks and support a more even skin tone. Artemisia capillaris flower extract enhances radiance and promotes a brighter, more harmonious complexion. The gentle, non-comedogenic, non-photosensitizing and non-exfoliating formula is suitable for daily use and leaves the skin looking smoother, clearer and more luminous.