Eucerin Even Pigment Perfector Mono Chamber Dual Serum is an innovative dual-action serum designed to target hyperpigmentation, dark spots, and uneven skin tone caused by sun exposure, aging, acne, or hormonal changes, powered by Thiamidol, a patented ingredient clinically proven to reduce melanin production from day one and deliver visible spot reduction in as little as two weeks, combined with Hyaluronic Acid to deeply hydrate, smooth fine lines, and improve skin firmness, resulting in a radiant and refined complexion, clinically and dermatologically proven to be effective across all skin types and skin tones, with consistent use showing significant improvement in skin clarity and spot reduction.