What is it?

“Chloromethane, also called methyl chloride, Refrigerant-40, R-40 or HCC 40, is a chemical compound of the group of organic compounds called haloalkanes. It has the chemical formula CH3Cl,” Wikipedia

What are the effects?

This substance belongs to the groups:

Methyl chloride on the Red List* from Campaign for Safe Cosmetics, a project of Breast Cancer Prevention Partners (previously the Breast Cancer Fund). They classify the chemical compound as a developmental toxicant and of occupational concern.

The European Chemicals Agency (ECHA) identifies methyl chloride as “an extremely flammable gas, is suspected of causing cancer and may cause damage to organs through prolonged or repeated exposure, damaging fertility or the unborn child and contains gas under pressure and may explode if heated.”

* “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?

Methyl chloride can be found in cosmetic products* such as conditioners, shampoos and other hair styling products.

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.