La Roche-Posay Anthelios UVMune 400 SPF50+ Invisible Fluid is an advanced facial sunscreen that provides very high broad-spectrum protection against UVA and UVB rays. The ultra-light formula is specifically designed for sensitive skin and offers invisible coverage without leaving white marks. This sunscreen features the innovative UVMune 400 filtering system with Mexoryl 400 technology for enhanced protection against ultra-long UVA rays. The formula is water, sweat and sand resistant while being non-greasy and non-sticky. It's dermatologically tested for sensitive skin and is free from fragrance. For best results, apply generously 20 minutes before sun exposure and reapply every 2 hours or after swimming, sweating or toweling.