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Horse flies cause painful bites and can ruin outdoor time quickly. Choosing the right repellent keeps you safe and comfortable.
Horse flies are tough pests that bother humans during outdoor activities. They bite hard and can cause swelling or irritation. Using a reliable horse fly repellent helps prevent these bites and lets you enjoy nature without worries. This post covers top repellents like Repel 100, Sawyer Products with Picaridin, and plant-based options with lemon eucalyptus.
Some sprays protect your clothing and gear too, adding an extra defense layer. You will also find DEET-free alternatives that work well for sensitive skin. Whether you want long-lasting protection or natural ingredients, this guide helps you find the best horse fly repellent for humans. Stay bite-free and enjoy your time outside.
Repel 100 Insect Repellent

The Repel 100 Insect Repellent, Pump Spray is ideal for outdoor enthusiasts, campers, hikers, and anyone seeking reliable protection against insects. If you spend time in areas with high insect activity or need a long-lasting solution for outdoor adventures, this product is designed for you. Its compact size makes it convenient to carry, ensuring you stay protected wherever you go.
Pros:
- Provides up to 10 hours of protection against mosquitoes, ticks, and other biting insects.
- Easy-to-use pump spray design offers precise application without aerosol propellants.
- Compact and lightweight, making it perfect for travel and outdoor activities.
- Clear formula that does not leave a greasy residue on the skin.
- Produced by United Industries, a trusted manufacturer in pest control products.
Cons:
- May require reapplication in heavy sweat or water exposure situations.
- Strong insect repellent scent that some users might find overpowering.
- Not suitable for use on infants or very young children without consulting a physician.
The Repel 100 Insect Repellent stands out with its potent formula that ensures long-lasting insect protection for up to ten hours. The pump spray mechanism allows users to apply the repellent evenly and efficiently, avoiding the use of aerosol sprays that can be less environmentally friendly. This makes it especially convenient for those who want effective insect defense during extended outdoor activities like hiking, fishing, or camping.
Additionally, the product’s compact dimensions (6.0 inches in height and weighing only 0.01 pounds) mean it can easily fit into backpacks, pockets, or gear bags without adding bulk. The clear spray formula ensures it dries quickly and does not leave any sticky or oily residue, enhancing user comfort. Overall, this insect repellent combines convenience, effectiveness, and trusted brand quality to meet the needs of outdoor lovers seeking dependable protection.
Sawyer Products Sp564 Premium Insect Repellent

The Sawyer Products SP564 Premium Insect Repellent with 20% Picaridin in lotion form is ideal for outdoor enthusiasts, travelers, and anyone seeking effective protection against insects. This product is perfect for those who want a reliable, long-lasting insect repellent that is gentle on the skin and easy to apply. Whether you’re hiking, camping, or spending time in bug-prone areas, this repellent offers excellent defense against mosquitoes, ticks, and other biting insects.
Pros:
- Contains 20% Picaridin, a highly effective and safe active ingredient for repelling insects.
- Comes in a convenient 4-ounce lotion bottle, making it easy to apply evenly and carry during outdoor activities.
- Non-greasy and absorbs quickly into the skin without leaving a sticky residue.
- Long-lasting protection, typically effective for several hours after application.
- Suitable for use on all exposed skin and can be used by adults and children over 2 months old.
Cons:
- Lotion form may take slightly longer to dry compared to sprays.
- Some users may prefer a spray for quicker and broader coverage.
- The scent may be noticeable to sensitive users, although it is generally mild.
The Sawyer SP564 Premium Insect Repellent features 20% Picaridin, which is recognized for its effectiveness and skin-friendly properties. Unlike DEET, Picaridin is odorless and less likely to cause irritation, making it an excellent choice for people with sensitive skin or those looking for a more pleasant application experience. The lotion formulation allows for precise application to specific areas, ensuring thorough protection without waste. Its compact size makes it ideal for travel and outdoor excursions where space and convenience are important.
Users benefit from the long-lasting repellency that reduces the need for frequent reapplications, allowing uninterrupted enjoyment of outdoor activities. The product’s lightweight and non-greasy texture enhance comfort, encouraging consistent use. Additionally, the repellent is versatile for various environments, including wooded areas, grassy fields, and urban parks, providing reliable defense against a wide range of biting insects. Overall, the Sawyer SP564 is a practical and effective solution for anyone needing dependable insect protection.
Repel Plant-based Lemon Eucalyptus Insect Repellent

The Repel Plant-Based Lemon Eucalyptus Insect Repellent is ideal for individuals seeking a natural and effective solution to protect themselves from mosquitoes and other biting insects. This product is perfect for outdoor enthusiasts, families with children, and anyone who prefers a plant-based, DEET-free alternative to traditional insect repellents. If you spend time hiking, camping, gardening, or simply enjoying outdoor activities, this insect repellent offers a safe and pleasant option to keep bugs at bay.
Pros:
- Contains natural lemon eucalyptus oil as the active ingredient, providing effective mosquito repellent properties.
- Plant-based formula, making it safe and gentle for use on skin.
- Clear, non-greasy spray with a refreshing lemon scent.
- Comes in a convenient pump spray bottle for easy application.
- Compact size (4 ounces) ideal for travel and outdoor adventures.
- Pack of 2 ensures you have a backup or can share with family and friends.
Cons:
- May require more frequent reapplication compared to chemical-based repellents.
- Not recommended for use on children under 3 years old.
- Some users might find the lemon eucalyptus scent strong initially.
The Repel Plant-Based Lemon Eucalyptus Insect Repellent leverages the natural power of lemon eucalyptus oil, which has been proven to repel mosquitoes effectively. Unlike traditional repellents that rely on synthetic chemicals, this product offers a plant-based alternative that reduces the risk of skin irritation and adverse reactions, making it suitable for sensitive skin. The clear, pump spray design allows for precise and even application, ensuring you get full coverage without a sticky residue. Its compact dimensions (5.68 inches tall and weighing 0.6 pounds) make it highly portable and easy to carry during any outdoor activity.
Users will appreciate the pleasant lemon scent that replaces the often harsh chemical odors of conventional insect repellents. The pack of two bottles ensures that you have ample supply for extended trips or multiple users. While it may require more frequent application than DEET-based products, its natural composition provides peace of mind, especially for families and individuals who prioritize eco-friendly and health-conscious choices. Overall, this insect repellent is a practical and effective solution for those who want reliable protection with a natural touch.
Sawyer Products Sp657 Premium Permethrin Insect Repellent

The Sawyer Products SP657 Premium Permethrin Insect Repellent is ideal for outdoor enthusiasts, campers, hikers, and anyone who spends extended time in insect-prone environments. If you want to protect your clothing, gear, and tents from mosquitoes, ticks, and other bugs without applying chemicals directly to your skin, this product is the perfect choice. It is especially beneficial for families, hunters, and travelers seeking long-lasting insect protection.
Pros:
- Effective insect repellent that lasts on clothing and gear
- Easy-to-use trigger spray application
- Large 24-ounce bottle provides ample coverage
- Lightweight and portable with compact dimensions
- Safe for use on a variety of materials including tents and outdoor gear
Cons:
- Not intended for direct application on skin
- Yellow color may stain some fabrics
- Scent might be strong for sensitive users
The Sawyer SP657 uses premium permethrin formula designed specifically to treat clothing, camping gear, and tents, providing a highly effective shield against biting insects. Its trigger spray mechanism allows for easy and even application, ensuring that your gear is thoroughly coated for maximum protection. This feature is especially useful for those preparing for extended outdoor trips, where insect-borne diseases can be a concern. The product’s compact size and lightweight design make it convenient to carry along on any adventure.
By treating your gear with this insect repellent, you benefit from prolonged protection that lasts through multiple washes, reducing the need for frequent reapplications. This not only saves time but also ensures consistent defense against ticks and mosquitoes, which can be vectors for serious illnesses. Additionally, the product’s compatibility with a wide range of fabrics and materials means you can confidently protect everything from your hiking clothes to your camping tent without worrying about damage.
Grand Tongo Deet-free Insect Repellent With Picaridin

The Grand Tongo DEET-Free Insect Repellent with Picaridin is ideal for individuals seeking a safe, effective alternative to traditional DEET-based repellents. Perfect for outdoor enthusiasts, families, and those with sensitive skin, this product offers long-lasting protection without harsh chemicals, making it a smart choice for anyone wanting to enjoy the outdoors without the nuisance of insect bites.
Pros:
- 12 hour protection against mosquitoes and other insects
- Contains Picaridin, a proven DEET alternative that is gentle on the skin
- Citrus & Sandalwood scent provides a pleasant fragrance instead of chemical odors
- Compact dimensions (7.0 x 2.0 x 2.0 inches) make it easy to carry
- Brand and manufacturer trusted for quality insect repellents
Cons:
- May require reapplication in heavy sweating or swimming conditions
- Scent might be too strong for users preferring unscented products
The Grand Tongo DEET-Free Insect Repellent utilizes Picaridin, an effective ingredient known for repelling insects without the harshness of DEET. This makes it suitable for users who are cautious about chemical exposure but still need reliable protection. The product’s 12-hour duration ensures that users can enjoy extended outdoor activities with minimal interruptions for reapplication, offering peace of mind during hikes, camping, or backyard barbecues.
Additionally, the unique Citrus and Sandalwood fragrance enhances the user experience by masking the typical chemical smell found in many repellents. Its compact size allows for easy portability, fitting conveniently into bags or pockets. Overall, the Grand Tongo repellent combines safety, effectiveness, and pleasant scent, making it a versatile choice for anyone looking to stay bite-free in a natural way.
Absorbine Ultrashield Red Fly Spray

The Absorbine UltraShield Red Fly Spray is ideal for horse owners and livestock caretakers seeking a reliable and long-lasting insecticide and repellent. If you want to protect your animals from bothersome flies and other pests for an extended period, this product is designed to keep your animals comfortable and pest-free for up to 7 days with just one application.
Pros:
- Provides up to 7 days of active protection against flies and insects.
- Easy-to-use 32oz quart spray bottle for convenient application.
- Formulated specifically for horses and livestock, ensuring safety and effectiveness.
- Produced by trusted brand Absorbine and manufacturer W.F. Young, INC.
- Compact and manageable dimensions and weight make it easy to handle and store.
Cons:
- May require reapplication in extremely heavy fly populations or wet weather conditions.
- Strong scent that some users may find overpowering initially.
The Absorbine UltraShield Red Fly Spray is formulated to deliver effective insecticide and repellent benefits, making it a top choice for protecting your horses and livestock from biting flies and other pests. Its long-lasting formula ensures that a single spray can provide continuous protection for up to a week, reducing the hassle of frequent reapplications. This helps maintain your animals’ comfort, health, and overall well-being without constant interruptions.
Additionally, the product’s design in a handy 32oz quart spray bottle allows for easy and precise application, ensuring thorough coverage. The trusted brand and manufacturer behind this spray guarantee high-quality ingredients and performance, making it a dependable solution in your pest management routine. Whether you manage a few horses or a larger herd, the Absorbine UltraShield Red Fly Spray offers a practical and effective way to keep your animals safe from irritating insects.
Frequently Asked Questions
What Is The Best Ingredient For Horse Fly Repellent?
Picaridin and DEET are highly effective against horse flies. Lemon eucalyptus oil is a natural alternative. These ingredients provide long-lasting protection and are commonly found in top repellents.
How Long Does Repel 100 Insect Repellent Last?
Repel 100 offers up to 10 hours of protection against horse flies and other insects. It’s ideal for extended outdoor activities and provides strong, reliable defense.
Can Permethrin-treated Clothing Repel Horse Flies?
Yes, permethrin-treated clothing from Sawyer Products repels horse flies effectively. It kills insects on contact and lasts through multiple washes, enhancing protection when worn outdoors.
Is Lemon Eucalyptus Repellent Safe For Sensitive Skin?
Yes, Repel Plant-Based Lemon Eucalyptus repellent is safe for most skin types. It’s a natural, DEET-free option suitable for those seeking gentle yet effective fly protection.
How Does Grand Tongo Differ From Traditional Deet Repellents?
Grand Tongo uses picaridin and natural citrus plus sandalwood oils. It offers 12 hours of protection without DEET’s strong odor or potential skin irritation.
Can Absorbine Ultrashield Protect Both Humans And Horses?
Absorbine UltraShield is formulated primarily for horses but can protect livestock areas. For human use, dedicated repellents like Repel 100 or Sawyer Products are recommended for safety and effectiveness.
Conclusion
Choosing the best horse fly repellent helps you enjoy outdoor activities without constant bites. Products like Repel 100 and Sawyer’s Picaridin lotion offer reliable protection for hours. Natural options such as Repel’s Lemon Eucalyptus spray provide a gentle alternative. For clothing and gear, Sawyer’s Permethrin spray adds extra defense.
If you prefer DEET-free, Grand Tongo’s repellent combines safety with long-lasting effects. Absorbine UltraShield is ideal for those around horses and livestock, offering extended protection. Each product has unique strengths, so pick one that fits your needs and comfort. Remember, applying repellent correctly and reapplying when needed ensures the best defense.
Staying protected means less irritation and more time outdoors. Choose wisely and enjoy your adventures free from horse fly troubles.
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