La Roche-Posay Niacinamide 10 Anti-aging Concentrated Serum clarifies skin discoloration and rebalances the look of uneven skin tone with visible results starting in one week. This formula, with 10% Niacinamide, visibly reduces discoloration, post-acne marks (also called post-inflammatory hyperpigmentation), and even stubborn dark spots to reveal a brighter, more even complexion.​ Clarifies discoloration, rebalances appearance of uneven skin tone. 35% visible reduction of skin discoloration with 8 weeks of use. In clinical study, participates saw visible improvement in dark spots size, number & color visibly reduced in just one week In clinical study, 90% of people saw improvement on even stubborn dark spots on hands. Powerful, visibly lasting results continues to fade dark spots 3 weeks after use Leaves skin brighter and more radiant. Free of oil and paraben. Non-comedogenic Disclaimer: I received these in bulk so the product may not have a box due to packaging damage, product is unused and has been inspected for tampering.