Born from 18 years of research, Melasyl™ is the newest patented ingredient exclusively from La Roche-Posay. In combination with 10% Niacinamide and LHA, this new and innovative molecule helps fight the look of dark spots like never before. This anti-aging serum visibly reduces dark spots, including age spots and post-acne marks. It also acts on skin texture and uneven complexion, brightening and refining the skin. A first-of-its-kind dark spot serum with clinical efficacy that was developed for all skin tones. Suitable for sensitive skin. Immediately skin feels smoother, looks brighter and more radiant. At 1 week, the skin is moisturized, skin tone looks more even and post-acne marks look less visible. At 2 weeks, dark spots and wrinkles are visibly reduced.