DEET is proven to be the best repellent against mosquitoes available. This comes in different strengths and the higher the percentage, the more effective it is and the longer it lasts. The most popular strength is 50% DEET but we recommend you get one with a bite inhibitor (PLUS+)
DEET can damage plastics, lacquers etc. The Health and Safety Executive has deemed it safe for use on the skin but it can be harmful in contact with eyes or mouth.