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Moumoujus

STEARDIMONIUM HYDROXYPROPYL HYDROLYZED RICE PROTEIN.

Insufficient Data / ANTISTATIC, HAIR CONDITIONING, SKIN CONDITIONING

A sophisticated modification of rice protein, this ingredient delivers superior skin and hair conditioning. Its unique cationic structure enhances adherence and promotes hydration, while its peptide-rich composition supports skin elasticity and reduces inflammation.

Summary

Moisturizing Skin Conditioning Hair Conditioning Film-forming Anti-inflammatory Sebum Regulating Elasticity Boosting Antistatic

Science

Mechanism of Action

This ingredient, a modified hydrolyzed protein, comprises smaller peptides and amino acids designed for effective epidermal penetration. On the skin, it primarily functions as a potent hydrator, increasing intrinsic water content and forming a protective film to mitigate moisture loss and shield against environmental stressors. Rich in essential amino acids, it actively supports collagen synthesis, contributing to improved skin firmness and the visible reduction of fine lines. Its inherent anti-inflammatory properties work to calm irritation and minimize redness, making it particularly beneficial for sensitive skin types. Furthermore, it aids in balancing sebum production, offering advantages for both oily and acne-prone complexions. The 'Steardimonium Hydroxypropyl' moiety introduces a cationic charge, a quaternary ammonium salt, which significantly enhances its substantivity (adherence) to skin, ensuring prolonged efficacy and providing antistatic benefits.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Hydrolyzed rice protein typically shows enhanced solubility below pH 3 and above pH 8. While unmodified proteins have an isoelectric point between pH 4 and 7, this cationic derivative maintains a positive charge across the typical cosmetic pH spectrum (shifting its isoelectric point to pH 9-12), which bolsters its stability and substantivity within formulations. A specific optimal pH range for peak stability of this exact modified ingredient has not been explicitly defined in current research.

Conflicts

  • Strong anionic ingredients (potential for precipitation or reduced efficacy)

Safety

Safety Profile

CIR Status
Insufficient data
Sensitization risk Unknown

A direct Cosmetic Ingredient Review (CIR) safety assessment for STEARDIMONIUM HYDROXYPROPYL HYDROLYZED RICE PROTEIN is currently unavailable, thus its specific CIR status is noted as 'insufficient data.' However, the CIR Expert Panel deemed Hydrolyzed Rice Protein safe for cosmetic use in 2006. There is no specific SCCS (Scientific Committee on Consumer Safety) opinion for this modified ingredient. It is important to note that Hydrolyzed Rice Protein concentrate has been recognized as Generally Recognized As Safe (GRAS) for food applications by Axiom Foods, with the FDA raising 'no questions' regarding this determination in 2018. For cosmetic ingredients, the FDA does not mandate pre-market approval; product manufacturers bear the responsibility for ensuring ingredient safety.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Insufficient Data

While STEARDIMONIUM HYDROXYPROPYL HYDROLYZED RICE PROTEIN demonstrates promising moisturizing, firming, and soothing properties for all skin types, comprehensive safety data specifically for this modified ingredient remains insufficient for a definitive Moumoujus rating.

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