La Roche-Posay Mela B3 Serum is an intensive anti-dark spot treatment featuring Melasyl™ technology and 10% niacinamide (vitamin B3). This lightweight gel-serum targets hyperpigmentation, post-acne marks, and persistent dark spots while preventing future discoloration. The formula contains La Roche-Posay's patented Melasyl™ active ingredient that intercepts excess melanin production before it can mark the skin. The peach-colored gel-serum has a light texture that absorbs quickly without stickiness. It is alcohol-free, hypoallergenic, non-comedogenic and suitable for sensitive skin. The serum provides moisturizing and soothing benefits while helping fade stubborn marks and even skin tone. It can be used by those prone to pigmentation from sun exposure, aging, or post-inflammatory hyperpigmentation.