Lemon Eucalyptus EO

Lemon eucalyptus oil is applied topically on your skin for preventing mosquito and deer tick bites, as well as for treating muscle spasms, toenail fungus (onychomycosis), and osteoarthritis and other joint pain. It is also added as an ingredient in chest rubs, relieving congestion.

Slate recommends⁶ this oil for repelling bugs:

“For full-on chemophobes who seek a registered product, there is lemon eucalyptus oil, which works as well as low concentrations of DEET and may last for up to six hours. For adventurous chemophobes, there is PMD, the synthetic version of lemon eucalyptus. Both are generally safe, although neither should be used on children under the age of 3 (just another example of the fact that natural doesn’t always equal benign).”