Ricinoleamidopropyl Ethyldimonium Ethosulfate

What is Ricinoleamidopropyl Ethyldimonium Ethosulfate?

Ricinoleamidopropyl Ethyldimonium Ethosulfate is a quaternary ammonium compound synthesized from ricinoleic acid, a fatty acid abundant in castor oil. It features an amidopropyl chain linked to a positively charged ethyldimonium ethosulfate group, making it a cationic surfactant. Primarily used in rinse-off hair care products like conditioners and detanglers, it works by adsorbing onto the negatively charged surface of hair fibers through electrostatic interactions. This deposition forms a lubricating film that minimizes friction between strands, neutralizes static buildup from brushing or drying, and enhances overall hair texture without residue in typical formulations. Its mild nature suits daily use in styling aids, where it supports product spreadability and efficacy.

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 easier styling and reduced flyaways.

Boosts hair softness and smoothness by lowering surface friction.

Supports better manageability and shine in conditioning products.

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 from environmental dryness.
Those with known sensitivity to quaternary ammonium compounds.
Users seeking lightweight conditioning without heaviness.
Individuals experiencing scalp irritation from similar cations.
People incorporating rinse-off hair treatments into routines.
Users preferring completely natural or quat-free formulations.

Safety Notes

  • Rated low hazard by assessment databases for cosmetic use.
  • Non-comedogenic, suitable for routine hair product application.

Frequently Asked Questions about Ricinoleamidopropyl Ethyldimonium Ethosulfate

What is Ricinoleamidopropyl Ethyldimonium Ethosulfate derived from?

It originates from ricinoleic acid in castor oil, formed into a cationic quaternary ammonium salt.

Is it safe for daily hair conditioning?

Yes, considered safe in rinse-off hair products at typical concentrations.

Does it help with hair static?

Yes, it neutralizes static by improving hair surface conductivity.