The best mosquito protection for camping combines something on your skin, something on your clothing, and something around your campsite. No single product handles every situation, but layering these three approaches can make a camping trip nearly bite-free, even in peak mosquito season.
Skin Repellents That Actually Last
Four active ingredients are backed by enough testing to be worth your money: DEET, picaridin, oil of lemon eucalyptus (OLE), and IR3535. At comparable concentrations, they perform similarly. DEET at 50% provides about four hours of protection, and doubling it to 100% only adds roughly one extra hour, so higher concentrations aren’t always better. Controlled-release lotion formulas can stretch protection much further: a 20% DEET lotion can match the performance of 50% DEET in a standard alcohol-based spray, and a 34% DEET lotion has been shown to provide up to 12 hours of protection.
Picaridin at 20% works as well as DEET at the same concentration and has one major advantage for campers: it won’t damage your gear (more on that below). OLE products at 20% concentration protect for six to eight hours in field testing, making them the longest-lasting plant-derived option. IR3535 at 20% also performs comparably to 20% DEET. For a weekend car-camping trip, any of these will work. For backcountry trips where weight matters and reapplication is inconvenient, a controlled-release DEET lotion or a 20% picaridin formula gives you the most hours per application.
Why DEET Can Ruin Your Camping Gear
DEET is a solvent. It dissolves nylon, waterproof and breathable membranes, spandex, rayon, rubber, latex, vinyl, and elastic at any concentration. If you spray your hands and then grab your rain jacket, tent fabric, or trekking pole grips, you can cause permanent damage. It also fogs and dissolves plastic lenses on sunglasses, watch faces, GPS screens, and satellite communicators.
If you prefer DEET, apply it carefully to exposed skin and wash your hands before touching gear. Or switch to picaridin, which offers similar protection without acting as a solvent. This is especially worth considering if you’re camping with expensive rain gear or electronics.
Treating Clothing and Gear With Permethrin
Permethrin is an insecticide you apply to fabric, not skin. It kills or repels mosquitoes and ticks on contact with treated clothing, and it’s one of the most effective layers of protection you can add for camping. You can treat pants, long-sleeve shirts, socks, hats, tents, and hammocks.
There are two methods: spraying or soaking. For spraying, a light, even coat on each garment works. For soaking, about three ounces of 0.5% permethrin solution per garment is a good benchmark. Let items sit for a few hours so the solution fully penetrates the fabric, then air dry them in the shade. Sunlight breaks down permethrin, so avoid drying treated items on a clothesline in direct sun.
Self-applied permethrin lasts about six weeks or six washes, whichever comes first. You can extend that by hand-washing treated clothes (washing machine agitators accelerate breakdown) and storing them in opaque bags between trips. If you want something more permanent, professional treatment services can make clothing effective for up to 70 washes.
A few safety notes: wear gloves when applying permethrin, work in a well-ventilated outdoor area, and keep it away from cats, other animals, food, and water supplies. Once the treatment is dry on fabric, it’s safe to wear against your skin.
Creating a Mosquito-Free Zone at Camp
Spatial repellent devices heat a small amount of active ingredient and disperse it into the air, creating a zone that mosquitoes avoid. Thermacell is the most widely used brand for camping. Their devices create a protective area covering roughly a 15 to 20 foot radius after a 10 to 15 minute warm-up period. That’s enough to cover a picnic table, a cooking area, or a group of camp chairs.
Battery life varies by model. Rechargeable units typically run five to nine hours per charge, which is enough for an evening at camp but may need recharging on multi-day trips. These devices work best in still air. Wind pushes the repellent zone off to one side, so positioning the device upwind of your seating area helps, and they’re less effective on breezy ridgelines than in sheltered forest campsites.
Spatial repellents are a comfort layer, not a replacement for skin repellent. They’re ideal for the hours you spend sitting around camp cooking and eating, when you’d rather not keep reapplying lotion.
Repellent Safety for Kids
Children younger than two months should not use any insect repellent. After two months, DEET is considered safe, but the American Academy of Pediatrics recommends keeping concentrations at 30% or below for children. Picaridin and IR3535 are also options in that age range.
Oil of lemon eucalyptus is the exception: it should not be used on children under three years old. If you’re camping with toddlers, DEET or picaridin at moderate concentrations are your best choices. Apply repellent to your own hands first, then rub it onto your child’s exposed skin, avoiding their hands, eyes, and mouth. For infants under two months, mosquito netting over strollers and carriers is the only recommended protection.
Sunscreen and Repellent Together
If you’re camping somewhere sunny and buggy, apply sunscreen first and wait about 10 minutes for it to absorb into your skin. Then apply your insect repellent on top. This order matters because repellent needs to be the outermost layer to work properly. Avoid combination sunscreen-repellent products. Sunscreen needs reapplication every two hours, but repellent lasts longer, and reapplying a combo product means you end up with too much repellent on your skin.
Putting It All Together for a Trip
The most effective camping setup layers three levels of protection. Start at home by treating your outer clothing, socks, and tent with permethrin a day or two before your trip so everything has time to dry. Pack a skin repellent with 20% or higher concentration of your preferred active ingredient: picaridin if you want to protect your gear, DEET in a controlled-release lotion if you want maximum duration, or OLE if you prefer a plant-based option with proven six-to-eight-hour performance.
At camp, set up a spatial repellent device near your cooking and seating area about 15 minutes before you plan to settle in. Wear long sleeves and pants during dawn and dusk, when mosquito activity peaks. Tuck pants into socks if the bugs are aggressive. This combination of treated clothing, skin repellent on exposed areas, and a spatial barrier at your campsite covers you whether you’re on the trail, at the fire, or sleeping in your tent.
One last practical detail: store repellent containers in a sealed bag away from food, and keep permethrin-treated gear in a dark bag during transport. Both steps preserve effectiveness and prevent contamination. A little prep before your trip saves a lot of swatting once you’re out there.