Know Your Ingredients: Alpha Isomethyl Ionone

by Gio

alpha isomethyl ionone

What it is
Alpha isomethyl ionone is a colourless or pale yellow liquid.

What it does
Alpha isomethyl ionone adds fragrance to a product.

Side effects
Alpha isomethyl ionone can cause irritations and allergies in some people, especially those with sensitive skin.

(Source: Contact Dermatitis, December 2005)

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6 comments

Chic Readings October 4, 2014 - 7:03 pm

It’s good to know this when it can have that kind of side effects, thank you for sharing!

Reply
Gio October 4, 2014 - 8:29 pm

Helena, you’re welcome.

Reply
Tips and Beauty October 5, 2014 - 2:42 pm

My skin is too sensitive which is why I always prefer mild or no fragrance products. Good post!

Reply
Gio October 5, 2014 - 7:55 pm

Niesha, I prefer those too. I like perfume, but not in my skincare products.

Reply
Rowland May 25, 2016 - 1:03 am

Can this ingredient cause bacteria when applied to the skin and not washed off before being reapplied also? And is this in all deodorants and skin care products?
When I say reapplied I mean in the same day after your morning routine if you want to freshen up.

Reply
Gio May 28, 2016 - 11:38 pm

Rowland, I’m not sure what you mean with causing bacteria?

I don’t think so. I’ve never come across anything like this when I was researching this ingredient.

Reply

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