Oil of lemon eucalyptus has been found to be the most effective natural mosquito repellent. A 2016 study found that the efficacy of this particular oil falls third in line, behind DEET and picaridin.
To protect against mosquitoes, ticks and other bugs, use insect repellent that contains 20 to 30 percent DEET on exposed skin and clothing. Always follow the instructions on the repellent and reapply ...