This Pure Niacinamide 10 Serum from La Roche-Posay is formulated to target stubborn dark spots, uneven skin tone, and post-acne marks. Its high concentration of Niacinamide helps diminish visible discoloration and supports the skin's natural barrier function. Apply this potent serum both morning and evening to achieve a more uniform and radiant complexion. It absorbs quickly, making it suitable for integration into existing skincare routines before moisturizer.