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Treating your Clothes with Permethrin

manufactured by :
Philip Werner
Version:
1
Price:
12.95

Reviewed by:
Rating:
5
On June 9, 2013
Last modified:July 17, 2016

Summary:

As a treatment for clothing, Permethrin clothing insect repellent does not harm fabrics and is odorless after it dries. Use Permethrin on clothing by itself or with skin-applied repellents to create the ultimate protective, armor-like insect barrier. Permethrin-treatments on clothing are non-toxic to humans and are registered for use by the U.S. EPA.

Sawyer Permethrin - Kills Ticks on Contact

Sawyer Permethrin – Kills Ticks on Contact

Permethrin is a contact pesticide that kills black flies, ticks, and mosquitoes on contact but has no harmful side effects on humans if used properly. It is the active ingredient used in Insect Shield and Buzz Off clothing and kills bugs when they land on your clothing by overloading their nervous system. You can buy Permethrin in liquid form and spray it on your own clothes to the same effect. This self-applied form lasts for 4-6 washings. Permethrin was developed by the U.S. military to protect soldiers from insects in the jungle.

You can buy Permethrin on Amazon. A big bottle comes with a spray adapter and will cover 4 complete sets of clothing, including shirts, pants, and socks. You’ll want to read the directions carefully before applying it, but it’s not difficult to do. You need to spray it on the clothes you plan to wear hiking or for any outdoor activity in a windless but well ventilated place like a garage. Let them dry for a few hours and you’re all set.

Permethrin is EPA approved for use as an insect repellent when applied to clothing and other textiles.

Permethrin is EPA approved for use as an insect repellent when applied to clothing and other textiles.

I’ve been spraying Permethrin on the clothes that I wear for spring and summer hiking in New Hampshire and Vermont for over 7 years. This has included long sleeve shirts, convertible hiking pants, gaiters, and hiking socks. When you spray the Permethrin on, you want to position the sprayer 6 to 8 inches away from the clothing you plan to treat. Pay particular attention to the cuffs of long pants and shirt sleeves where ticks will try to attack you. It’s also a good idea to spray it on your hat or to buy one that’s already been treated with Permethrin like the Outdoor Research Sentinel Brim Hat. which is what I wear.

I can attest to the effectiveness of Permethrin particularly against mosquitos and ticks. I rarely ever get bitten, maybe one or two bites per year, as long as I wear long-sleeved shirt and pants when I go hiking in the forest. I love having the sun on my arms and legs as much as the next guy, but I’d rather cover up than catch Lyme disease, which the CDC believes is now 10 times more prevalent than previously reported. It’s also a good way to prevent Zika carrying mosquitos from biting you as well.

Permethrin is the active ingredient in Ex Officio's BugsAway Clothing Line: Ex Officio BugsAway Ziwa Convertible Pants shown here

Permethrin is the active ingredient in Ex Officio’s BugsAway Clothing Line

More about Permethrin

As a treatment for clothing, Permethrin clothing insect repellent does not harm fabrics and is odorless after it dries. Use Permethrin on clothing by itself or with skin-applied repellents to create the ultimate protective, armor-like insect barrier. Permethrin-treatments on clothing are non-toxic to humans and are registered for use by the U.S. EPA.

The active ingredient, Permethrin, is a synthetic molecule similar to those found in natural pyrethrum, which is taken from the chrysanthemum flower. Not only does this product repel insects, but will actually kill ticks, mosquitoes, chiggers, mites and more than 55 other kinds of insects.

Permethrin insect repellents are for use with clothing, tents, and other gear. During the drying process, it tightly bonds with the fibers of the treated garment. It will not stain or damage clothing, fabrics, plastics, finished surfaces, or any of your outdoor gear.

Permethrin is a contact insecticide, meaning that kills ticks or other insects when it comes in contact with them. It uses the same active ingredient used in hair shampoos for head lice. When applied to clothing, the Permethrin binds to the fabric eliminating the risk of over-exposure to the skin. As a clothing, tent, chairs, or sleeping bag application, Permethrin is very effective at keeping ticks from attaching to you and at reducing the mosquito population in your camping area. While ticks usually find you at the ankle level (be sure to treat the socks and pants) they can also climb bushes and find you at a higher level so be sure to treat your shirt as well if you are around bushes and concerned about ticks.

Sweating and exposure to water do not significantly deteriorate the application. It is primarily the agitation of a washing machine, which deteriorates the Permethrin application as it knocks the molecules loose from the fabric. For best results, Sawyer recommends hand washing and air-drying. When using a conventional washer and drier, use the gentle wash and dry cycles. Loss due to the dryer is limited compared to the detergent and washer agitation. Dry cleaning removes the Permethrin from the fabric.

Permethrin can last up to six weeks including through six weekly washings. All treatments are non-staining and not greasy. Always follow the directions for use on the package label. Factory pre-treated Permethrin clothing however lasts for 70 washings, and is far more convenient if you don’t want to spray your own clothing.

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93 Responses to Treating your Clothes with Permethrin

  1. Art Wynne March 12, 2016 at 5:15 pm #

    How safe is Permethrin lotion for use on uncovered/exposed skin?

    • lisa suits March 12, 2016 at 5:46 pm #

      Did you mean to ask about SPRAY, and not lotion? This thread is about the permethrin SPRAY used to treat clothing and gear, not the lotion or cream used to treat human lice, etc.
      That being said, if it will help keep you safe, I’ll answer that what I’ve learned about skin contact with the wet SPRAY solution for clothing is that it is not recommended at all, but the warnings are partly based on safety warning standards. The spray-on solution is not made to be used on skin, so the standard warnings are applied. Another reason is because it is ineffective against insects when applied to skin; apparently it is deactivated by your skin chemistry. That does not make it safe, however.
      There’s over 80 comments in this discussion, a lot of people have put time into finding answers. Tons of good info here, please read. You could also check Sawyer’s website and read the FAQ’s there.

  2. Art Wynne March 12, 2016 at 6:46 pm #

    Thanks Lisa. Yes I appreciate the information in the thread and am now well informed on the efficacy of the spray for clothing. I was moving on to the topic of finding a safe and effective lotion, possibly one that contains Permethrin, for exposed skin. I’m traveling to Puerto Rico and want to take the a protection product for exposed skin with me to avoid/repel mosquitos that might be carrying Zica. Thx for any info you may be able to provide.

  3. Jim April 16, 2016 at 8:54 am #

    Rookie move, under-diluted the first time I mixed up a batch to spray on my clothes. Applied it at 1%, rather than 0.5%. Just on my pants, boots, daypack. (Had done socks, t-shirts, shirts with the single bottle of pre-mixed I’d bought, planning to refill with self-mixed) I see one fellow above mentions going 12-1 (.83%) per military approach, so am guessing I’m not in any real danger.

    Should I watch for skin issues, or any other red flags to using over-treated clothes?? I suppose I may just get some extra time out of it, as he suggests the army does…but wanted to see if anyone had any negative experience from over-treatment.

    • lisa April 16, 2016 at 12:25 pm #

      I seriously doubt there would be any issues from mixing it .3% stronger than usual. Not sure if it would last any longer just because it’s a stronger concentration, though, but I can’t find info on what concentration the army uses, or how they “factory treat” it, that makes it last through 50 washings.

      A quick search found some people having bad reactions to it even at recommended strength; no accounting for individual sensitivities.

      After researching this up and down for a long time before deciding to use it myself, in my opinion I’d say you have nothing to worry about (barring any personal sensitivity).

  4. Lynne April 28, 2016 at 12:16 am #

    Hi all, Im from New Zealand and my husband and I are going on a cruise to New Caledonia, we will be visiting 4 of the small islands there and apparently the Zika Virus is around, whats the best advice about protection against mosquitos please.

  5. Madi May 20, 2016 at 9:36 pm #

    It is essential to let them air dry after treating them, rather than using a dryer?

    • Philip Werner May 20, 2016 at 9:42 pm #

      yes, using a dryer accelerates the decay of the Permethrin coating. More friction. Air drying is recommended.

  6. Sunondo June 2, 2016 at 4:58 pm #

    I’ve used Duration’s 10% concentrate solution for trips to Kilimanjaro and Serengeti as well as countless Boy Scout campouts in tick infested areas. I can vouch that clothes washed in this solution, properly diluted, works well beyond 6 washes/6 weeks. All my clothing is North Face/Columbia/etc. outdoor wear. I wear clothes with it everyday and wash regularly. During the last campout two weeks ago, we had ticks on every scout and adult except my son and myself. The last treatment was well over a year ago. Whatever trace of the permethrin is on the clothing, it’s enough to keep ticks away. You might need a stronger residue for mosquitoes. Absolutely a must for travel to places with stinging/biting bugs.