What Is The Best Mosquito Repellent? A Complete Guide for Families, Travellers & Outdoor Lovers

Mosquitoes and biting insects are more than just annoying. They can disrupt sleep, irritate skin, and in some parts of the world carry serious diseases. Whether you are travelling abroad, camping, or protecting your family at home, choosing the right insect repellent matters.

With so many products available, from DEET sprays to natural insect repellents, many people ask the same question: what is actually the best mosquito repellent?

The answer largely comes down to the active ingredient.

Why Choosing the Right Mosquito Repellent Matters

The best mosquito repellents should provide:

• Proven protection against mosquitoes and biting insects
• Long-lasting effectiveness
• Safety for children and families
• Comfort on the skin
• A pleasant smell
• Freedom to reapply when required
• Protection without unnecessary harsh chemicals

Understanding the active ingredient is the key to making the right decision.

 

The Most Common Insect Repellent Ingredients Explained

1. DEET – Effective but With Concerns

DEET has been one of the most widely used insect repellent ingredients in the world for decades. It is effective and can provide long lasting mosquito protection, especially in tropical environments.

Pros of DEET

• Effective against mosquitoes and biting insects
• Long-lasting protection
• Widely available worldwide
• Recommended in some high risk tropical regions

Cons of DEET

Despite its effectiveness, DEET has become increasingly controversial because of concerns around toxicity and skin sensitivity.

Potential drawbacks include:

• Strong chemical smell
• Can irritate the skin
• May damage plastics and synthetic fabrics
• Not ideal for frequent daily use
• Restrictions in some countries regarding use on children
• Concerns around repeated exposure and absorption through the skin

Many countries around the world advise against using high strength DEET products on young children, with some guidance recommending avoiding use on children under 18 years old or limiting application frequency. Even where DEET is approved for children, advice commonly suggests using the lowest concentration possible and limiting applications to once per day.

For many parents, this creates an understandable concern when choosing a family-friendly insect repellent.

2. Picaridin / Icaridin – A Common “DEET Free” Alternative

Picaridin (also known as Icaridin) is another synthetic insect repellent ingredient often marketed as a safer alternative to DEET.

Pros of Picaridin

• Effective against mosquitoes
• Less odour than DEET
• Does not damage plastics
• Often marketed as “DEET free”

Cons of Picaridin

• Still a synthetic chemical ingredient with its own safety concerns 
• Less long term usage history compared to DEET
• Some users report skin irritation
• Still a chemical based repellent alternative 
• Application restrictions can still apply for young children

This is why consumers should not automatically assume that “DEET free” means completely natural or toxin free. Many brands use the phrase simply because of the negative reputation surrounding DEET, while still relying on synthetic chemical alternatives.

 

3. PMD – The Leading Natural Origin Mosquito Repellent

PMD (p-menthane-3,8-diol) is proven to be the of the most effective natural origin insect repellent ingredients available today. Derived from natural plant oils, PMD has become increasingly popular with families, travellers, and consumers looking for highly effective protection without relying on harsh synthetic chemicals.

However, not all PMD ingredients are the same.

There are different grades and formulations of PMD used across the insect repellent market, including ingredients such as Citriodiol® and Citrepel75®.

Different Types of PMD Ingredients

Citriodiol 

Citriodiol is a commonly used PMD-based ingredient found in various insect repellent products. This is refined from Eucalyptus citriodora oil and has a PMD content of around 68% PMD.

While it can provide effective mosquito protection, it is seen as a lower grade PMD oil and can sometimes:

• Have a stronger slightly unpleasant smell
• Feel oily or heavy on the skin
• Contain more impurities
• Cause irritation for sensitive skin users
• Deliver lower PMD concentrations which may impact overall performance

Citrepel75® – The Premium PMD Option

Citrepel75® is considered a premium refined PMD ingredient and is the active ingredient used throughout the THEYE® mosquito repellent range. It has a PMD content of 75% making it the premium option offering powerful protection. 

Compared to standard PMD oils, Citrepel75® offers:

• A cleaner and fresher smell (Citrus small)
• Repels a wide range of insects (Mosquitoes, midges, ticks, horse flies & More)
• Offers complete protection comparable to DEET based option
• Better skin feel and comfort
• Higher refinement and purity
• Very low levels of impurities
• Excellent long lasting mosquito protection
• A more premium overall user experience

Most importantly, Citrepel75® provides powerful insect protection while remaining suitable for:

• Children aged 6 months+
• Pregnant women
• Frequent daily use
• Family applications

Unlike many chemical based alternatives, Citrepel75® can also be reapplied throughout the day as required.

Why PMD Is Becoming the Preferred Mosquito Repellent Option

PMD (p-menthane-3,8-diol) is widely regarded as the leading natural origin insect repellent ingredients available today.

Unlike many harsh chemical alternatives, PMD offers an excellent balance between effectiveness and safety.

Premium PMD formulations have become increasingly popular with:

• Families
• Travellers
• Parents of young children
• Outdoor enthusiasts
• People with sensitive skin
• Consumers seeking more natural alternatives

The key difference is quality.

Not all PMD products are equal, and the performance depends heavily on how refined and concentrated the active ingredient is.

Why THEYE® Uses Citrepel75®

THEYE® mosquito repellents use Citrepel75®, the leading PMD active ingredients available.

Citrepel75® is a highly refined PMD ingredient designed to scientifically provide powerful protection while remaining suitable for everyday family use.

Compared to lower grade PMD oils, Citrepel75® offers:

• A cleaner and more pleasant smell
• Better skin feel
• Improved refinement and purity
• Reduced impurities
• Excellent effectiveness against mosquitoes
• Reliable long-lasting protection

Most importantly, Citrepel75® combines proven mosquito protection with a strong safety profile.

THEYE® mosquito repellents containing Citrepel75® are suitable for:

• Children aged 6+ months & Pregnant women 
• Proven complete protection for use in extreme environments 
• Families
• Daily use
• Travellers 
• Outdoor activities

Unlike many chemical based repellents, Citrepel75® can also be reapplied throughout the day as required while still delivering effective mosquito protection for comparable durations to many synthetic alternatives.

This flexibility makes it especially attractive for families travelling abroad, spending time outdoors, or using insect repellent regularly.

Natural vs Chemical Mosquito Repellents

One of the biggest misconceptions in the insect repellent market is that all natural products are weak and all chemical products are stronger.

Modern premium PMD based repellents challenge that assumption.

Today’s advanced PMD formulations can provide highly effective protection without relying on aggressive chemical ingredients.

When comparing insect repellents, consumers should consider:

Feature	DEET	Picaridin/Icaridin	Citrepel75® PMD
Mosquito Protection	Excellent	Excellent	Excellent
Natural Origin	No	No	Yes
Suitable for Young Children	Limited	Varies	Yes – 6+ months
Suitable During Pregnancy	Often limited	Varies	Yes
Skin Friendliness	Moderate	Moderate	High
Smell	Strong chemical	Mild chemical	Fresh & pleasant
Reapplication Flexibility	Often limited	Varies	Can be reapplied as needed
Family Friendly	No	Moderate	Excellent

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What Makes the Best Mosquito Repellent?

The best mosquito repellent is not simply the strongest chemical formula, but one that is proven to be effective without risk.  

For most people, the ideal insect repellent should balance:

• Safety
• Effectiveness
• Comfort
• Skin friendliness
• Ease of use
• Suitability for the whole family

This is why PMD based mosquito repellents are becoming increasingly popular across the UK and internationally.

Consumers no longer want to choose between effectiveness and safety.

They want protection that works while also being suitable for everyday use around children and families.

Why More Families Are Choosing THEYE® Mosquito Repellents

THEYE® has become a trusted choice for customers looking for highly effective insect repellents without relying on harsh chemical ingredients.

Using premium Citrepel75® PMD technology, THEYE® mosquito repellents are designed to deliver:

• Powerful mosquito protection
• Family friendly formulations
• Safe use for children 6+ months
• Suitability for pregnant women
• Pleasant fragrance and skin feel
• Long-lasting performance
• Reapplication flexibility throughout the day

Rather than simply using the phrase “DEET free” as a marketing term, THEYE® focuses on using a genuinely advanced PMD active ingredient that combines effectiveness with safety and comfort.

For many families, travellers, and outdoor enthusiasts, this creates the ideal balance.

Final Verdict: What Is the Best Insect Repellent?

There is no doubt that DEET remains highly effective against mosquitoes. However, increasing concerns around toxicity, skin irritation, and suitability for children have led many consumers to search for safer alternatives.

At the same time, not all “DEET free” repellents are truly natural or family friendly.

For consumers wanting strong mosquito protection without relying on harsh synthetic chemicals, premium PMD based repellents offer one of the best overall solutions available today.

THEYE® mosquito repellents using Citrepel75® provide a modern approach to insect protection, combining proven effectiveness with family friendly safety, pleasant usability, and natural origin active ingredients.

For families, holidays, outdoor adventures, and everyday protection, PMD based mosquito repellents are increasingly becoming the preferred choice.

Frequently Asked Questions

Is PMD as effective as DEET?

Premium PMD ingredients such as Citrepel75® in high strength formulas are shown to  have comparable efficacy to DEET and have been proven to provide highly effective mosquito protection for comparable durations to many chemical based repellents. 

Is DEET safe for children?

Guidance varies between countries, but many health authorities recommend limiting DEET use on children, especially younger children, and avoiding reapplication on the same day.

What does “DEET free” really mean?

“DEET free” simply means the product does not contain DEET. It does not necessarily mean the product is natural or free from other synthetic chemical ingredients.

What is the difference between Citriodiol and Citrepel75®?

Citrepel75® is a more refined premium PMD ingredient with improved purity, effectiveness, and user experience compared to lower grade PMD oils such as Citriodiol.

Which mosquito repellent is best for families?

Many families now prefer PMD based repellents because they offer effective protection while also being suitable for children, pregnant women, and frequent use.