Eucerin Even Pigment Perfector Skin Perfecting Serum is a dermatological skincare product formulated with patented Thiamidol technology. This 30ml serum is designed to address uneven skin tone, dark spots, and hyperpigmentation while providing a natural radiant glow. The serum contains Thiamidol, a patented active ingredient that helps reduce the appearance of dark spots and prevents their reappearance. It is developed for those concerned with uneven skin tone and hyperpigmentation. The lightweight formula absorbs quickly into the skin and can be used as part of a daily skincare routine. For optimal results, it should be applied to clean skin before moisturizer.