This mandelic-acid-based corrective serum combines with lactic acid to provide the ultimate exfoliating, clarifying, and brightening effects to heal acne and lighten hyperpigmentation. L-Mandelic acid is chirally correct and contains a larger molecule than other AHAs to provide even exfoliation with less irritation. Sodium hyaluronate and niacinamide provide moisturizing and barrier-healing benefits as well.