Medik8 Intelligent Retinol 10TR is Medik8's highest concentrated retinol serum (1%). This powerful anti-aging booster ensures that the most advanced skin types achieve maximum anti-aging. Wrinkles and fine lines are reduced with the use of this vitamin A serum. In addition, the Intelligent Retinol 10TR also contains the powerful antioxidant vitamin E, which ensures better stability and protection against free radicals. If the use of the Intelligent Retinol 6TR Medik8 is going well, you can start building up with this serum. Your skin will look tighter, fuller and smoother after a few months of use.