Behentrimonium Chloride

What is Behentrimonium Chloride?

Behentrimonium Chloride is a quaternary ammonium compound derived from behenic acid, a long-chain fatty acid sourced from vegetable oils like rapeseed or colza. Chemically, it features a positively charged nitrogen atom attached to a C22 alkyl chain and chloride counterion, classifying it as a cationic surfactant. In cosmetics, it primarily appears in rinse-off hair care items such as conditioners and detanglers. It functions by depositing onto the negatively charged hair surface during application, forming a lubricious film that neutralizes static electricity through improved conductivity. This interaction minimizes friction between hair strands, facilitating combing and enhancing tactile smoothness. Additionally, its antimicrobial properties help inhibit microbial growth in the product matrix, supporting formulation stability.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 4 View on EWG →
PubChem View on PubChem →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Antistatic agent
Reduces static electricity and flyaways by improving surface conductivity, enhancing hair manageability and smoothness in conditioners and styling products.
Hair conditioning
Improves softness, shine, and manageability by reducing friction and static; commonly achieved with cationic agents, silicones, oils, or conditioning polymers.
Preservative
Protects the product from microbial contamination during storage and use, helping maintain safety, stability, and shelf life.

Benefits

Reduces static cling and flyaways for smoother, more manageable hair.

Deposits a conditioning layer to improve softness and shine after rinsing.

Offers preservative action to maintain product integrity against microbes.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Individuals with frizzy or static-prone hair seeking better manageability.
Those with known sensitivity to quaternary ammonium compounds.
Users of conditioners wanting enhanced detangling and comb-through.
Individuals experiencing allergic reactions to cationic surfactants.
People preferring gentle, plant-derived conditioning ingredients in hair care.
Users preferring silicone-free or quat-free hair products.

Safety Notes

  • Rated moderate concern by some databases due to potential for mild irritation in leave-on uses.
  • Generally suitable for rinse-off hair products per cosmetic safety reviews.

Frequently Asked Questions about Behentrimonium Chloride

What is Behentrimonium Chloride derived from?

It comes from behenic acid, a fatty acid in vegetable oils like rapeseed.

Is it safe for daily hair conditioner use?

Safety panels deem it appropriate for rinse-off hair products in typical amounts.

Does it cause comedones on skin?

Rated non-comedogenic, unlikely to clog pores.