Insect Repellent IR3535®

Discover everything about our insect repellent IR3535®.


We developed the insect repellent IR3535® more than 30 years ago. Since then, it has become an established ingredient for protecting you and your family against mosquitoes, ticks, and other bugs. Whether you’re playing sports, exploring lakes or jungles, canoeing on a river, or just relaxing on a beach watching the sunset, IR3535® will protect you for hours. But one of the best things about IR3535® is that it shields you without harming your health or the environment. As a result, it is already well known in many countries as a highly reliable and tolerable repelling agent against ticks, mosquitoes, and other irritating insects such as head lice.


To scientists, IR3535® is known as ethyl butylacetylaminopropionate [EBAAP]. Not only does it discourage insects from biting humans, it is also safe to use around your beloved four-legged friends.

Inspired by nature, the main priority for our insect repellent is to protect you and your family from bugs and the diseases they may transmit. Just as importantly, however, we not only aim to guard you and your family, but also to ensure the products you use are not harmful. And by this we mean that they’re safe for everyone – from babies/toddlers to the oldest generation.


  • Efficacy and long-term protection: It doesn’t matter how IR3535® is applied (in a spray, oil, sticks, or wipes). It protects you for up to 8 hours from any kind of bug – mosquitoes, ticks, head lice…  
  • A quiet night after a busy day: The last thing you want to worry about (day or night) is being bitten by insects or catching one of the unpleasant diseases they might transmit! Childhood is about playing outdoors, babies want to crawl in the sand, families want to explore the countryside in a canoe or camp outdoors without worrying about what might happen.
  • Sustainability: Our insect repellent respects the environment and takes care of your skin and health. So, it has an excellent “toxicological and eco-toxicological profile” – in other words, it’s not toxic to aquatic organisms such as fish or algae. Moreover, it doesn’t build up in the environment. So, it’s a great way to protect yourself and the environment at the same time!


IR3535® has been successfully used in insect repellents for over 30 years. And how can we prove that it really does what we state? By pointing to a variety of field and “arm in cage” studies, which confirm that our insect repellent works effectively in repelling different kinds of bugs. According to the World Health Organization (WHO), protection against mosquito bites is key to preventing Zika and other insect-borne diseases. One option is to wear clothes that cover as much of the body as possible. In fact, all kinds of physical barriers are important (such as window screens, doors, and windows). Some people sleep under mosquito nets. And others use insect repellents containing IR3535®, DEET, or Icaridin (also known as Picaridin).

IR3535®’s efficacy is also confirmed by the recommendations of official bodies such as the CDC (Centers for Disease Control) and EPA (Environmental Protection Agency). Thanks to our scientific team, which is always exploring the capabilities of IR3535®, a growing number of brands now use this important ingredient, offering you a variety of products suitable for all family members.

  • What are field tests and “arm in cage” tests?

The tests used for IR3535® are designed to focus on one species at a time. To prove the efficacy of our insect repellent against mosquitoes, we either conduct tests in the field or in a lab. These tests allow us to estimate the protection time of our insect repellent. The results are then shown on the label as hours of protection. If insect protection is important to you, IR3535® is the best friend you could wish for. We understand how important it is to feel safe when you’re outdoors – you’ve probably got much better things to do than worrying about insect bites! We take this need seriously, which is why we want people using products with IR3535® to feel safe and protected for up to 8 hours.