The Skin Formulary
IngredientsBrandsJournalShop
Browse Products

Researched by Helena DeMaria-Williams

Formula IngredientConditioning Agent

Behentrimonium Chloride

INCI: Behentrimonium Chloride

Behentrimonium chloride is a quaternary ammonium salt derived from rapeseed oil (behenic acid). It is primarily used as a hair conditioning agent and antistatic, reducing static and making hair easier to comb. In skincare, it can function as an emulsifier and mild preservative. It is one of the gentler quaternary ammonium compounds due to its long C22 alkyl chain.

Category

Conditioning Agent

Irritation Risk

Medium

Skin Types

all hair types, dry hair, tangled hair, colour-treated hair

What does this do in a formula?

hair conditioning, antistatic, detangling, emulsifying, mild preservative

Is Behentrimonium Chloride safe? Key considerations

Can Behentrimonium Chloride cause irritation?

Medium Risk

As a cationic surfactant, behentrimonium chloride can be irritating at higher concentrations, particularly in leave-on products. EU CosIng restricts it under Annex V/44 for preservative use. The SCCS (opinion 1246/09) has assessed alkyl trimethylammonium chlorides and sets maximum concentration limits. At typical rinse-off concentrations it is generally well tolerated.

Does Behentrimonium Chloride increase sun sensitivity?

No Risk

Behentrimonium chloride does not increase photosensitivity.

Is Behentrimonium Chloride safe during pregnancy?

Safe

Behentrimonium chloride is primarily used in rinse-off hair products with minimal skin contact and absorption. No reproductive or developmental concerns are noted in available safety data.

How does Behentrimonium Chloride work?

Behentrimonium chloride is a quaternary ammonium salt derived from rapeseed oil (behenic acid). It is primarily used as a hair conditioning agent and antistatic, reducing static and making hair easier to comb. In skincare, it can function as an emulsifier and mild preservative. It is one of the gentler quaternary ammonium compounds due to its long C22 alkyl chain.

Individuals with sensitive scalp at high concentrations, known quaternary ammonium allergy should review the considerations above before use.

Which products contain Behentrimonium Chloride?

Shop products that contain Behentrimonium Chloride