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Consumer Reports: These repellents best protect against Zika

An Aedes Aegypti mosquito
Jaime Saldarriaga | Reuters
An Aedes Aegypti mosquito

Consumer Reports releasing its findings Tuesday of the top-performing insect repellents in the battle against mosquitoes and Zika.

Consumer Reports examined which of the "natural" repellents work well versus those that don't.

The findings are a bit scary, with five of the six plant oil-based repellents they tested doing little to protect against Zika; only lasting an hour against Aedes mosquitoes, a carrier of Zika.

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Consumer Reports Deputy Editor of Health and Food, Trisha Calvo, telling CNBC's Power Lunch "the study found that there are a variety of active ingredients that are effective in which Consumer Reports, the CDC and EPA, all say are safe."

Those ingredients include DEET, Picaridin and oil of lemon eucalyptus.

Calvo says you need to look for the products with these ingredients in the right concentrations: 15-30% Deet, 20% Picaridin, 30% Oil of lemon eucalyptus.

Calvo also says the Consumer Reports does not recommend repellents above 30% DEET because "they may pose greater risks and lower concentrations can provide excellent protection."

The three insect repellents that did the best in the Consumer Reports' ratings are (in order), Sawyer Picaridin, Ben's 30% Tick & Insect Wilderness Formula, Repel Lemon Eucalyptus.

According to the report, these products were effective against Aedes mosquitoes for seven to eight hours.

They were effective against Culex mosquitoes for eight hours.

They protected against ticks for 7 ½ hours to 8 ½ hours.