Cetaphil Advanced Defense Serum AM 30ml is a daily-use serum designed to strengthen skin's resilience against environmental aggressors. Formulated with antioxidants, it helps to neutralize free radicals from pollution and blue light that can contribute to premature aging. This lightweight serum absorbs quickly, providing a smooth, non-greasy base for makeup and sunscreen. It is clinically proven to improve skin's barrier health, reducing sensitivity over time. A consumer should use it to proactively protect their skin from daily environmental damage, helping to prevent signs of aging like fine lines and dullness while soothing and fortifying sensitive skin.