Cinnamidopropyltrimonium Chloride

What is Cinnamidopropyltrimonium Chloride?

Cinnamidopropyltrimonium Chloride is a synthetic quaternary ammonium compound, featuring a cinnamido group attached to a propyl chain with trimethylammonium chloride. It belongs to the class of cationic surfactants commonly incorporated into hair care formulations such as conditioners, detanglers, and leave-in treatments. In products, it works by delivering a positive charge that electrostatically binds to the negatively charged keratin proteins on hair shafts. This interaction neutralizes static buildup, seals the hair cuticle, reduces surface friction between strands, and promotes even distribution of conditioning agents. Primarily used in rinse-off applications at low levels, it enhances overall hair texture without leaving heavy residues, making it suitable for daily use in managing flyaways and tangles.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 3 View on EWG →

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.

Benefits

Minimizes static electricity for smoother, more manageable hair.

Reduces friction between strands to ease detangling and styling.

Supports shine and softness in conditioning formulations.

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 flyaway hair seeking better control.
Those sensitive to quaternary ammonium compounds.
Users of hair conditioners wanting improved detangling.
Individuals with known contact allergies to similar cations.
People with normal to dry hair needing antistatic properties.
People with very reactive scalps prone to irritation.

Safety Notes

  • Considered safe for use in rinse-off hair products at typical concentrations.
  • EWG rates it moderate due to potential contamination risks.

Frequently Asked Questions about Cinnamidopropyltrimonium Chloride

What does Cinnamidopropyltrimonium Chloride do in hair products?

It acts as an antistatic and conditioning agent, reducing static and improving hair smoothness.

Is it safe for daily hair care use?

Yes, in rinse-off products at standard levels, per cosmetic safety assessments.

Does it clog pores?

Rated non-comedogenic, suitable for acne-prone skin users.