Reduction in the appearance of facial hyperpigmentation after use of moisturizers with a combination of topical niacinamide and <i>N</i>-acetyl glucosamine: results of a randomized, double-blind, vehicle-controlled trial

Abstract

A formulation containing the combination of niacinamide + NAG reduced the appearance of irregular pigmentation including hypermelaninization, providing an effect beyond that achieved with SPF 15 sunscreen.