Laurtrimonium Chloride

What is Laurtrimonium Chloride?

Laurtrimonium Chloride is a quaternary ammonium salt, chemically known as lauryl trimethyl ammonium chloride, derived synthetically from lauryl alcohol and trimethylamine. It features a positively charged nitrogen head group attached to a 12-carbon chain, making it a cationic surfactant. Primarily found in rinse-off hair conditioners, shampoos, and styling aids, it functions by adsorbing onto the negatively charged hair keratin surface. This neutralizes static electricity, improves slip for easier combing, and enhances smoothness. As a surfactant, it lowers surface tension to aid foaming and cleansing. Its emulsifying properties stabilize oil-water mixtures in creams. Additionally, its antimicrobial action helps inhibit microbial growth, supporting product preservation in cosmetics.

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.
Biocide
Destroys or inhibits harmful organisms to preserve products.
Surfactant
Lowers surface tension to enable cleansing, emulsifying, and foaming; central to shampoos, body washes, and many emulsions and micellar systems.
Emulsifying agent
Enables stable mixing of oil and water phases by forming an interfacial film, helping create lotions, creams, and cleansers with consistent texture.
Preservative
Protects the product from microbial contamination during storage and use, helping maintain safety, stability, and shelf life.

Benefits

Reduces static buildup and flyaways, improving hair manageability in conditioners.

Supports gentle cleansing and foaming in shampoos and washes.

Helps preserve products by inhibiting microbial growth.

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 smoother results.
Those with known sensitivity to quaternary ammonium compounds.
Users of hair conditioners and styling products for better detangling.
Individuals prone to contact dermatitis from surfactants.
People using multi-functional rinse-off cleansers and emulsions.
People with highly reactive skin preferring minimal ingredient lists.

Safety Notes

  • Considered moderately hazardous by some rating systems due to potential irritation.
  • Typically used in rinse-off products where exposure is limited.

Frequently Asked Questions about Laurtrimonium Chloride

What is Laurtrimonium Chloride used for?

It serves as an antistatic agent, surfactant, emulsifier, biocide, and preservative in hair care and cleansing products.

Is Laurtrimonium Chloride comedogenic?

It has a comedogenic rating of 0, indicating low likelihood of pore clogging.

Can it cause irritation?

Potential for irritation exists, particularly for sensitive skin; use in rinse-off products minimizes risk.