Debunking Common Myths About Insect Repellents

Whether you're heading into the woods, planning a tropical adventure, or just enjoying the garden on a summer evening, choosing the right insect repellent can make all the difference. But with so many myths flying around, it’s easy to be misled. We’re here to set the record straight on six of the most common misconceptions.

Myth 1: DEET is harmful to your health

You’ll often hear claims that DEET is dangerous or best avoided, but these aren’t backed by science. DEET has been thoroughly assessed by global health authorities, including the World Health Organisation (WHO) and the Environmental Protection Agency (EPA), all of which confirm it is safe when used as directed.

In fact, the UK Government and NHS specifically recommend DEET-based repellents, including higher-strength formulas, for both adults and children when travelling to areas where diseases like malaria and dengue fever are a risk.

At Lifesystems, we offer a range of DEET-based repellents in varying strengths, so you can choose what’s right for your trip. We’ve even reduced our DEET levels slightly to meet affordability goals while still passing all clinical effectiveness testing. For those who prefer alternatives, we also offer natural and DEET-free options.

You can see the effectiveness of our Expedition MAX DEET formula in a test environment below.

Myth 2: Natural repellents are always safer and more effective

It’s easy to assume that plant-based or “natural” repellents are a safer choice, but that doesn’t always mean they’re risk-free or reliable. Essential oils like citronella, lavender and peppermint are often seen as gentler options, but most offer only very short-term protection, often lasting just minutes in independent lab tests.

The only naturally derived ingredient supported by Lifesystems is Citriodiol®, the active in our Natural Insect Repellent. It has been scientifically tested and found to be both safe and effective.

Myth 3: Repellents are only needed in tropical destinations

Not true. The UK has its fair share of biting insects, from midges in the Highlands to ticks in woodlands and long grass. Some UK ticks can even carry lyme disease, so it’s important to be protected even close to home.

If you’re hiking, camping or spending time outdoors during the warmer months, insect repellents are a must-pack item.

Myth 4: Mosquito bands work as well as skin-based repellents

It’s tempting to try mosquito repellent bands that promise hours of protection without applying anything to your skin. But these products are often unregulated and rarely meet the same testing standards as skin-applied repellents.

Independent lab testing using the same efficacy protocols applied to topical repellents shows that many bands offer little to no protection, often becoming ineffective within seconds.

At Lifesystems, we strongly advise against relying on these products, especially when travelling to areas where insect-borne diseases like malaria, dengue or Zika are a risk. Trust only scientifically tested and regulated repellents.

A study by Biogents shows just how ineffective anti-mosquito bands are. You can watch the video below.

Myth 5: You don’t need repellent if you’re wearing long sleeves

Clothing can help reduce exposure, but it’s not fool proof. Midges and mosquitoes can bite through thin or loose fabrics, and they’re quick to go for exposed areas like your hands, neck and face.

Insect repellent acts as a vital second line of defence, especially during peak biting hours like dawn and dusk.

Myth 6: All insect repellents are the same

Definitely not. From DEET-based and natural options to sensitive skin formulations, there’s a wide variety of repellents designed for different needs, climates and durations.

At Lifesystems, we’ve created a repellent range to suit every type of adventure. Whether you need all-day protection in the jungle or something gentler for a weekend hike, knowing what’s in your bottle matters. Always check:

• Active ingredient
• Protection time
• Suitability for children or sensitive skin

Final Thought

Insect repellents aren’t all created equal, and there’s plenty of misinformation out there. The key is to choose the right product for your environment, ensure it's clinically tested, and apply it correctly.

Still not sure which repellent is right for you? Explore the full Lifesystems range here.