What is it?

“Quinoline is a heterocyclic aromatic organic compound with the chemical formula C9H7N. It is a colorless hygroscopic liquid with a strong odor.” Wikipedia

What are the effects?

This substance belongs to the groups:

Quinoline is on the Red List* from Campaign for Safe Cosmetics, a project of Breast Cancer Prevention Partners (previously the Breast Cancer Fund). They list the substance as a probable carcinogen.

The European Chemicals Agency (ECHA) identifies that quinoline “may cause cancer, is toxic to aquatic life with long lasting effects, is harmful if swallowed, is harmful in contact with skin, causes serious eye irritation, is suspected of causing genetic defects, causes skin irritation, and is toxic if swallowed.”

* “The Red List includes chemicals found in personal care products that pose serious, chronic health concerns including cancer, hormone disruption, and reproductive and developmental harm. The list also flags chemicals that are banned or have use restrictions by the U.S. or other world governments, ingredients that adversely impact worker health, and ingredients that are widely used in products marketed to women of color.” – Campaign for Safe Cosmetics

How is it used?

Quinoline is used in the manufacture of dyes and as a solvent. In cosmetics*, the compound can be found in products such as hand cleansers and sanitizers, and skin fresheners.

We use the European Commissions definition of Cosmetics:
“Cosmetics range from everyday hygiene products such as soap, shampoo, deodorant, and toothpaste to luxury beauty items including perfumes and makeup”.

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Read about the other ingredients.