Photostable. Very Water-Resistant Xl-Protect Complex For Very High Uva/Uvb Protection, Broad Spectrum And Photostable. Optimal Protection Spf 50+ Reinforced Against Uva (Stricter Level Than The European Recommendation On Sunscreen Products) Thanks To A Filtering System With Mexoryl® Xl, Combined With La Roche-Posay Thermal Water, Soothing And Antioxidant. Anthelios Sun Protection Products Are Enriched With La Roche-Posay Thermal Spring Water. This Unique Water, Particularly Effective Against Skin Damage That Can Be Induced By Uva-Uvb Rays, Has Soothing And Antioxidant Properties.