Product Review

Ideal for PM use, this Serum contains three powerful agents – Konica Acid, Niacin amide and Retinol – which, along with peptides and other skin rejuvenation ingredients, help brighten and even out skin tone. KNR Serum features an exclusive Retinsphere liposomal delivery system which helps increase penetration and efficacy of the Retinol. Brighten utilizes a multitude of brightening agents - all hydroquinone free - to help lighten, even skin tone and minimize the look of hyperpigmentation. Brighten has the most potent non-hydroquinone arsenal in the fight against uneven skin tone.