Cocodimonium Hydroxypropyl Hydrolyzed Rice Protein

What is Cocodimonium Hydroxypropyl Hydrolyzed Rice Protein?

Cocodimonium Hydroxypropyl Hydrolyzed Rice Protein is a modified protein ingredient obtained by breaking down rice proteins into peptides, then attaching hydroxypropyl groups and quaternizing them with coconut-derived fatty acids. This process yields a positively charged, water-soluble cationic polymer. In cosmetics, it appears mainly in hair care formulations such as conditioners, shampoos, and leave-in treatments, with occasional use in skin products. Its key function stems from electrostatic attraction: the positive charge binds to negatively charged hair shafts and skin surfaces, depositing a thin lubricating film. This film seals cuticles, minimizes friction between strands, enhances slip for easier combing, controls static buildup from friction or humidity, and boosts visual shine by reflecting light evenly. The rice protein base provides lightweight conditioning without heavy residue, supporting product rinse-off efficacy.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 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.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.

Benefits

Enhances hair smoothness and detangling by reducing surface friction.

Neutralizes static electricity for better styling control.

Promotes skin and hair softness through protective film formation.

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 dry or coarse hair seeking improved manageability.
Persons with rare rice protein sensitivities.
People experiencing flyaways in humid conditions.
Individuals preferring silicone-free or fully anionic formulations.
Those desiring gentle, protein-based conditioning for daily use.
Those with coconut derivative allergies, though uncommon.

Safety Notes

  • Low hazard rating from safety assessments supports broad cosmetic use.
  • Non-comedogenic profile suits various skin types including acne-prone.

Frequently Asked Questions about Cocodimonium Hydroxypropyl Hydrolyzed Rice Protein

What makes this ingredient conditioning?

Its cationic nature allows strong binding to hair and skin, forming a smoothing film that reduces friction.

Is it suitable for sensitive skin?

Evidence indicates low irritation potential, making it appropriate for most users.

Where is it commonly used?

Primarily in shampoos, conditioners, and styling products for hair benefits.