PATENTED FORMULA REDUCES RISK OF VIRUS INFECTION The unique formula contains ELAH which has been safely and effectively used in mouthwashes for decades to block bacterial growth. The same award-winning team of scientists that developed the mouthwash also developed BioSURE PRO. COST EFFECTIVE PROTECTION: Each bottle contains 400 sprays which means 600 hours of protection! That's under 20p per 6 hours of protection. FEEL MORE PROTECTED: Use in your daily life. Ideal for use in crowds, at work, at school, on planes, on public transport, at concerts etc. Simple and convenient to use wherever you go. SCIENTIFICALLY PROVEN: BioSURE PRO has been independently proven to be safe and effective as a virus and antibacterial nasal spray. DRUG FREE AND NATURAL - BioSURE NASAL SPRAY: is not a medicine and has no known side effects. It simply works to stop cold and flu from being able to infect the cells in your nose. Reapply any time for continuous protection. INVISIBLE BARRIER - FIGHT AND DEFEND WHERE VIRUSES ATTACK: Applied as a plume spray, BioSURE PRO anti viral nasal spray fights and defends where viruses attack, giving up to 6 hours of enhanced protection against viral infections. GET PROTECTED IN SECONDS, LASTS FOR HOURS: An antibacterial & antiviral nose spray which is clinically proven to block and inactivate 99% colds, flu and other viruses. If the virus can't connect, it can't infect.