This silky, lightweight serum delivers our most potent level of Retinol to improve cell turnover, enhancing skin firmness and diminishing the look of lines and wrinkles. Patented NIA-114 technology nourishes the moisture barrier to provide visible age-fighting efficacy and limit the sensitivity common to Retinol. Imperfections are less visible as skin tone and texture appear more even. The high-performance formula leaves complexion dramatically refined for a smoother, more youthful looking appearance.