No More Spiders 500ml Non Harmful Spider Deterrent Spray No more spider creates a natural border preventing spiders from wishing to entre your home. Contains amongst other ingredients 0.25% w/w Peppermint Oil, it deters spiders but doesn"t harm them How to use: Spray around the area of doors, windows or indeed any areas that spiders may use to gain entry to your home. Re-apply every time you clean or after every 2 to 3 weeks.