Reveal a visibly smooth, bright and more youthful-looking complexion with Medik8's Intelligent Retinol serum. This high-performance vitamin A serum has been expertly formulated with climbazole (a proven retinol booster) for maximum visible youth-renewing results. Enhanced with nourishing squalane, Medik8's innovative Time Release Technology and a choice of 3 progressive strengths, Intelligent Retinol serum remains gentle on all skin types while providing maximum youth-boosting power. Key Benefits: Visibly Smoother, Brighter Skin Retinol gently exfoliates to visibly brighten and smooth the complexion over time. Firmer-Looking Complexion Works to improve both the look and feel of skin firmness. Supercharged Yet Gentle Results Enhanced with climbazole and Time-Release technology for increased and lasting retinol power that's slowly released throughout the night to remain gentle on skin. Customise Your Routine With 3 Progressive Strengths Available in a choice of 3 strengths including 3TR