La Roche-Posay Mela B3 Serum is a potent discoloration-correcting serum with innovative Melasyl™ and 10% Niacinamide (Vitamin B3) that targets stubborn dark spots, age spots, sun spots, and acne marks by intercepting melanin production early, promoting a brighter, more even skin tone and texture for all skin types, including sensitive. It’s lightweight, fast-absorbing, and ideal for daily use, often recommended with sunscreen