Discover visibly youthful, smooth and bright skin with Intelligent Retinol. This performance-enhanced vitamin A serum is expertly infused with climbazole (a proven retinol booster), for maximum visible age-defying results. Add to that nourishing squalane, Medik8's unique Time Release technology, and a choice of 3 progressive strengths for youth-boosting power that remains gentle on all skin types.