We often hear about allergies associated with essential oils. It is true that certain essential oils contain allergenic molecules that can sometimes cause a reaction in certain people. However, everyone is unique when it comes to this phenomenon, and if your terrain is sensitive, don't hesitate to test essential oils beforehand.

These allergies are relatively rare and only affect people who have a sensitive terrain. However, as essential oils are very concentrated products, they can cause a wide range of allergies: susceptible people should therefore be tested.

Do the allergy test on the underside of your elbow!

Some essential oils contain allergenic molecules.

What does this mean? Simply that they are molecules that some people can be allergic to.

You probably know if you are allergic to gluten or green beans, but you probably do not know if you are allergic to linalool or limonene.

So if you are prone to allergies, be careful and test the product by putting two drops of essential oil on the concave part of your elbow.

No reaction after 48 hours? Everything seems to be fine.

Do you see a skin reaction to a molecule? You did well to do the test. Don't push it too far and talk to your doctor. Whatever happens, don't panic and take the time to read the guide below to help you distinguish between a simple skin irritation and a real sign of allergy.

Do you have any allergies or irritations?

Not all signs necessarily mean you are allergic! Sometimes it's just irritation caused by sensitive skin. Here's how you can make a difference:

Time scale of onset

• Irritation: immediate or after a few applications.
• Allergy: Mostly delayed onset (between 24 and 48 hours after application).

Visible signs

• Irritation: mild itching, redness, prickling.
• Allergy: swelling, itching, burning. Severity varies according to reaction.

Affected areas

• Irritation: only the contact area will be irritated.
• Allergy: may spread to other parts of the body.

Recovery

• Irritation: resolution of symptoms with discontinuation of product use.
• Allergy: slower cessation, possible relapse.