7 Best Long-Lasting Mosquito Repellents For Summer Hikes
Stay bite-free on your summer hikes. We review the 7 most effective, long-lasting mosquito repellents to keep you protected on even the longest wilderness treks.
There is nothing that ruins a backcountry trek faster than the relentless drone of mosquitoes circling your ears. When you are living out of a pack or a van, gear weight and efficiency are everything, meaning you need protection that actually works without taking up precious space. These seven repellents are the gold standard for keeping the bugs at bay so you can focus on the trail ahead.
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Sawyer Products Picaridin: Best Overall Lotion
Protect your family with this long-lasting, non-greasy lotion featuring 20% Picaridin. It repels mosquitoes and ticks for up to 14 hours and is safe for skin and gear.
If you are looking for a reliable, no-nonsense solution, this is it. Picaridin is the modern gold standard because it provides long-lasting protection against mosquitoes and ticks without the oily residue or intense chemical smell of traditional DEET.
Because it comes in a lotion form, you get much better coverage and less waste compared to sprays that blow away in the wind. This is my top pick for long-distance hikers who need a formula that won’t degrade their synthetic clothing or plastic gear. It’s the perfect balance of performance and comfort for a multi-day trip.
Repel 100 Insect Repellent: Maximum DEET Strength
Repel 100 provides up to 10 hours of protection against mosquitoes, ticks, and other biting insects. Formulated with 98.11% DEET, this pump spray is ideal for heavily infested conditions and outdoor adventures.
When you are heading into deep, bug-infested wilderness, you don’t play around with low-concentration formulas. Repel 100 packs a 98.1% DEET concentration, which is designed for extreme conditions where mosquitoes are relentless.
This is strictly for the hardcore adventurer who values function over comfort. It is powerful, but be warned: it can damage certain plastics and synthetic fabrics if you aren’t careful. Use this only when you know you’ll be facing high-density bug populations where lesser repellents have already failed you.
Ben’s 30% DEET Tick and Insect Wilderness Formula
Ben’s hits that sweet spot of 30% DEET, which is widely considered the optimal concentration for most hiking scenarios. It’s enough to keep the pests away for hours, but it’s far less likely to melt your watch strap or sunglasses than the max-strength versions.
I recommend this for hikers who want a middle-ground solution that is easy to find and highly effective. It’s a workhorse product that does exactly what it says on the tin. If you want a dependable, time-tested repellent that won’t ruin your gear, keep a bottle of this in your pack.
Ranger Ready Permethrin: Best for Gear Treatment
Here is a crucial distinction: you don’t put Permethrin on your skin. Instead, you treat your clothing, boots, and tent netting with it before you even leave the house. It acts as a contact killer, meaning it doesn’t just repel bugs—it eliminates them on contact.
This is a game-changer for tick prevention, which is often more critical than just avoiding mosquito bites. By treating your gear once, you get protection that lasts through several washes. It is an essential step for anyone serious about minimizing the number of chemicals they need to spray on their skin daily.
Thermacell E-Series E55: Best Portable Repeller
For those who prefer a tech-forward approach, the Thermacell E55 creates a 20-foot protection zone using heat-activated repellent. It’s rechargeable and scent-free, making it perfect for setting up a bug-free perimeter around your campsite or van door.
This isn’t for hiking while moving, but it’s invaluable when you are stationary and trying to cook dinner or relax after a long day. It eliminates the need to cover yourself in layers of spray while you’re just hanging out. If you have the pack space, it’s a luxury that quickly becomes a necessity.
Murphy’s Naturals Lemon Eucalyptus: Best Natural
Protect yourself and your gear with Murphy's Naturals DEET-free repellent. Featuring natural oil of lemon eucalyptus, this spray effectively masks your scent to deter mosquitoes and ticks for reliable outdoor adventures.
Not everyone wants to douse themselves in synthetics, and that’s where Oil of Lemon Eucalyptus comes in. It is the only plant-based repellent recommended by the CDC, and it actually holds its own against DEET in many field tests.
It has a pleasant, citrusy scent and feels much lighter on the skin than heavy chemical alternatives. This is the right choice for shorter hikes or areas with moderate bug pressure. If you are sensitive to strong chemical odors, this is your best path forward.
Picardin 20% Spray by Sawyer: Best Easy Application
If you prefer the convenience of a spray but still want the benefits of Picaridin, this is your best bet. It’s non-greasy, dries quickly, and is completely safe to use on your synthetic hiking shirts and gear.
I love this for quick re-applications on the trail when you don’t want to stop and rub lotion into your skin. It’s lightweight, effective, and won’t leave you feeling sticky during a high-exertion climb. For most hikers, this is the most user-friendly option on the market.
Why DEET and Picaridin Are Essential for Hiking
DEET and Picaridin are the only two active ingredients that have consistently proven their worth in the field. DEET is the classic, providing a strong vapor barrier that confuses the sensors insects use to find you. Picaridin, meanwhile, is a synthetic derivative of a compound found in pepper plants that is just as effective but much more pleasant to use.
When you are living out of a backpack or a small space, you cannot afford to carry gear that fails. Relying on "natural" essential oils like citronella or peppermint often leaves you vulnerable to bites, which can lead to infection or disease in the backcountry. Stick to the science-backed options to ensure you stay protected.
How to Properly Apply Repellents for Long Hikes
The biggest mistake people make is missing spots, leaving small patches of skin exposed that mosquitoes will inevitably find. When applying lotion or spray, treat it like sunscreen—cover every inch of exposed skin, including your ears, the back of your neck, and your ankles.
If you are using spray, avoid spraying directly into your face; instead, spray your hands and then pat it onto your cheeks and forehead. For long hikes, reapply every four to six hours, especially if you are sweating heavily. Proper application is just as important as the quality of the repellent itself.
Essential Safety Tips for Using Chemical Repellents
Always wash your hands after applying repellent, especially before handling food or your contact lenses. Chemicals like DEET are effective at deterring bugs, but they can be irritating if they get into your eyes or mouth.
Additionally, be mindful of where you apply these products inside your tent or van. Chemicals can build up in small, unventilated spaces, so always apply your repellent outdoors. By being intentional with how you store and use these products, you can stay safe and comfortable throughout your entire journey.
Choosing the right repellent is all about matching your gear to the intensity of the environment you are entering. Whether you opt for the heavy-duty protection of DEET or the user-friendly nature of Picaridin, the best repellent is the one you actually remember to bring and apply. Stay prepared, stay protected, and enjoy the silence of the trail without the buzzing.
