Piz Buin Sun Allergy Lotion SPF50 is scientifically approved with dermatologists. Heliplex technology provides photo-stable UVA/UVB broad-spectrum protection while vitamin E helps neutralise free radicals which cause premature skin ageing. Contains gentle Calmanelle to help soothe irritations & a rich hydration complex to leave your skin smooth & silky soft. Sweat & water resistant. For sun sensitive skin. To use: Apply generously before sun exposure.