Muc-Off Glass Cleaner is highly effective at cutting through grease and grime, leaving glass and SatNav screens streak-free and sparkling. Its advanced anti-bacterial formula is biodegradable and contains NO harmful alcohol, ammonia or solvents, making it safe to use on all types of glass (including tinted), in car entertainment screens, SatNav screens and plastics. It also kills 99.99% of germs.