"Clinically tested to provide 100% protection against Aedes aegypti - Zika and Dengue carrying mosquitoes for 4.5 hours and good protection for up to 7 hours. 100% natural the active ingredient is plant-based PMD. PMD is NHS, WHO and Public Health England approved, and recommended for high-risk areas to protect against mosquito-borne diseases. The bottle is made from detectable sugarcane plastic which has a positive carbon footprint and is recyclable."