Medik8 Intelligent Retinol 6TR is a vitamin A serum with 0.6% retinol. Improves the overall skin structure with a focus on fine lines and wrinkles. Vitamin E has also been added to the Intelligent Retinol 6 TR, which ensures retinol stability and protection against free radicals. The easily absorbing serum is very pleasant to use under a Medik8 moisturiser and gives your skin a real boost. The skin becomes firmer and gets a more even complexion.