DEET interferes with those neurons and receptors; therefore, it protects your skin from the direct application. Picaridin is a synthetic ingredient in lots of skin-applied insect repellents , and it has been on the market since the s.
In the United States, picaridin has been available since It lasts up to eight hours and is as effective as DEET but not as oily. Yes, picaridin is safe. Although it is uncommon, there are reports that some users experience skin irritation. Yes, you can use picaridin-based repellents on children. Currently, no studies have shown that it is unsafe to use picaridin for children.
Keep in mind that according to the National Pesticide Information Center , infants and children may be more sensitive to pesticides.
Also, it is unwise to use it on children younger than three years of age. No, picaridin does not kill mosquitoes or other insects. It blocks out the scent, making it harder for the insect to find exposed parts of our body. IR was developed in the s and was mainly used in Europe. In the United States, it has been used since Primary targets of IR are mosquitoes, deer ticks, body lice, and biting flies.
The developer of IR Merck Inc. It can, however, be irritating to the eyes. Also, since it may dissolve or damage plastics, it is not as suitable to use on clothes. No, OFF! Please contact our Consumer Resource Center by phone at U. Or, contact us online. Find out where you can buy OFF! FAQs Take a look through our frequently asked questions for answers about product selection and use. General Product Questions. When should I use mosquito repellent?
At that point, you should probably throw them out — not because they will harm you, but because they may be less effective in repelling bugs. Whether a bug spray expires depends on the active ingredient, says Laurence Zwiebel , the Cornelius Vanderbilt chair in biological sciences at Vanderbilt University. Most active ingredients used in bug sprays are relatively stable and last a while. But even if the active ingredients don't expire, the overall formulation may become less effective over time.
Check the back of your bug-spray bottle to see which chemical it uses. Here's how long common active ingredients will last:. The majority of popular bug-spray brands, such as Off, contain N,N-diethyltoluamide, more commonly referred to as DEET, as their active ingredient. DEET doesn't expire. This chemical is quite stable and has a long shelf life, Zwiebel says.
Picaridin is another chemical that is effective at repelling bugs. Like DEET, picaridin is a stable chemical. Picaridin-based repellents usually do not have expiration dates on the bottle. Strong heat or cold will reduce the product's effectiveness. Melissa King began writing in She spent three years writing for her local newspaper, "The Colt," writing editorials, news stories, product reviews and entertainment pieces.
She is also the owner and operator of Howbert Freelance Writing. By Melissa King Updated December 14, Related Articles.
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