La Roche-Posay Mela B3 Niacinamide Dark Spot Corrector Serum is specially formulated to correct hyperpigmentation spots and even out the skin tone, featuring multi-patented Melasyl with a unique mechanism that intercepts excess melanin before it marks the skin, proven to deliver superior anti-pigmentation efficacy compared to multiple reference actives, combined with 10% Vitamin B3 (Niacinamide) to soothe the skin, strengthen the skin barrier, reduce post-inflammatory hyperpigmentation, and fade even stubborn dark spots for a brighter, more even complexion, while addressing micro-inflammation that triggers excess melanin production, enriched with La Roche-Posay Thermal Spring Water containing minerals, trace elements, and selenium for antioxidant protection, clinically proven to correct dark spots including age spots, sun spots, and post-acne marks, ensuring optimal efficacy with non-comedogenic and high-tolerance performance suitable even for sensitive skin.