Our testers risk their arms with continual tests over 6 hours for each mosquito repellent so you don't have to. We find out which ones last long enough before you need to reapply.

• See our how we test mosquito repellents to learn more about our testing methods.
• See our guide on finding the best mosquito repellent.

What about if you have the spray on and not the aerosol, do they perform the same? If the products have the same contents, they should perform similarly. The main difference we can see between say a roll-on and an aerosol is that with an aerosol you can spray a lot more product out in one go, whereas with a roll-on, you can only “roll on” so much. And coverage may be better with an aerosol.