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Health Information | 08/06/2024

Can Natural Insect Repellents Keep Bugs at Bay?

By  Atrius Health
Man spraying tick repellent on arm during hike in nature

Whether you enjoy spending leisurely evenings in the backyard or time hiking in the woods, you’re bound to come across some annoying bugs. Since some insects like mosquitoes and ticks can transmit dangerous diseases, it makes sense to use an effective bug repellent to protect yourself. Some people prefer using natural ingredients rather than manufactured repellents, such as DEET and picaridin. But do they work?

The good news is that insect repellents that use natural ingredients can be effective. However, the essential oils that they often use tend to evaporate quickly from the skin. This means their effectiveness will not last as long as other repellents. So be aware you will need to apply natural repellents more often to get proper protection.

If you want to use a natural insect repellent, look for one that uses some of the ingredients below, which have been proven to work well.

Oil of lemon eucalyptus

Used since the 1940s, oil of lemon eucalyptus (OLE) is the only essential oil registered with the Centers for Disease Control (CDC) as being safe and effective for repelling mosquitoes. Keep in mind that insect repellents that use essential oils have the potential to cause skin reactions in people with sensitive skin.

Citronella

A popular ingredient in many mosquito repellents, Citronella was originally used by the Indian Army to repel mosquitoes at the beginning of the 20th century. It was found to be a highly effective insect repellent in a 2011 research study. Keep in mind that citronella can evaporate quickly from the skin if not formulated properly.

Tea tree oil

Also known as melaleuca oil, tea tree oil is made from a plant found in Australia. Popular in a number of skin-based products, tea tree oil can be a very effective insect repellent. This study in Australia showed that it worked well against flies, mosquitoes, and biting midges.

Soybean oil

A common ingredient in food, soybean oil can also be an effective bug repellent. When the University of Florida’s Medical Entomology Laboratory tested a number of repellents, they found that a 2% soybean oil formula repelled mosquitoes for 1½  hours. While effective, products using soybean oil will probably need to be applied more often than others.

Thyme oil

A popular herb, thyme is often used to season food. However, thyme oil is considered one of the best essential oils for protecting against mosquitoes. This 1999 study showed that thyme oil was a highly effective repellent that provided 1½ to 3½ hours of protection, depending on strength.

Whichever insect repellent you choose, be sure to read the directions and safety information on the label carefully. Wearing a hat and long sleeves outdoors is also a good way to avoid getting bitten by those pesky bugs!

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About The Author

Atrius Health

Atrius Health, an innovative healthcare leader, delivers an effective system of connected care for adult and pediatric patients at more than 27 medical practice locations in eastern Massachusetts. By establishing a solid foundation of shared decision making, understanding and trust with each of its patients, Atrius Health enhances their health and enriches their lives.

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