Protection against dengue? Chemical based repellents or Natural based repellents


2013 is the worst year for Singapore with a record of 17,686 dengue cases and things doesn't look well going forward. According to NEA's Dengue Campaign Site, in 2014 there are a total of 15,854 dengue cases reported from the start of the year till now.

There are a few things we can do that can play a part. The dengue campaign from NEA shares 5 steps that help to remove the breeding environment for the mosquitos. You could also encounter mosquitoes outside your home, as it is an external environment out of your control, hence the best prevention is to avoid getting bitten with the use of repellents.

Two kinds of repellents

There are two kinds of repellents in the market- one is a natural repellant and the other is a chemical-based repellant.

Chemical based repellents

  • Comes in various form, aerosol, liquid cream or solid
  • Those that contains an active chemical Deet, works the best but may cause skin rashes if one is allergic to it
  • Not recommended for babies; for children, use with moderate amount (amount is usually not specified).

Here's a myth: Heavy application and saturation are generally better for effectiveness. The truth is increasing the concentration of Deet does not make the repellent more effective, it only means the person will be protected for a longer period. via link

Natural based repellents

At Intraix, we believe in natural products (we don't sell them though). For example, we counter haze with plants rather than using air purifier.

Here are 5  to keep you extra safe and away from chemical harm.


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These plants contain feline attractant nepetalactone that makes cat react strongly towards it. However researchs also shown that catnip repels cockroaches and this might be more effective at repelling mosquitoes than DEET.

How to use

Similarly to lemon balm; crushed and rubbed onto the skin


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These flowers are edible, add colour and flavour to your dishes. Surprisingly, they too have a compound "Pyrethrum" that is used in many insect repellents.

How to use

Potted marigolds can be positioned near entrances to your home and any common mosquito entry points, such as open windows. The smell may deter mosquitoes from going past this barrier. via Link


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Lavender flowers produce this scent that mosquitoes and many other insects hate. It is best put to use as a natural repellent when mixed with vinegar.

How to use

  1. Fill a bottle with dried lavender flowers.
  2. Pour in reasonable amount of vinegar
  3. Shake to mix lavender flowers and vinegar evenly, store it 1-2 days before using
  4. Dab on exposed skin areas to repel insects (Keep the rest for future use)

The mixture also helps to stop the itch, if you happened to get a bit


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Peppermint like Lavender is an amazing plant. It can be use for various purposes and even add a touch of taste into your food or drink.

How to use

  1. Cut fresh peppermint leaves and lemon peels
  2. Place both ingredients into a pot of water and boil
  3. Allow the mixture to sit a day or two
  4. Pour the mint-scented water into a spray water and use as an natural insect repellant

Fresh Garlic

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These need no introduction. Vampires hate it so do mosquitoes!

How to use

Just eat more garlic! It helps to treat cold sore and get rid of acne too.


Try the  different applications and see what works for you. Plus, you will have a very pleasant scent in your home and no harsh chemical. Let us know :D

*I'm a big fan of Lavender :P