Boost radiance with AR Advanced Retinol Concentrated Serum from StriVectin. Formulated with NIA-114 technology to rebuild the natural skin barrier and reduce the appearance of fine lines and wrinkles. The lightweight, yet powerful serum contains a high concentrated level of Retinol to strengthen skin and fight against signs of ageing. Imperfections are made less visible to leave skin with a smoother, refined texture and a more even tone.