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Moumoujus

COCODIMONIUM HYDROXYPROPYL HYDROLYZED HAIR KERATIN.

Valuable / ANTISTATIC, HAIR CONDITIONING, SKIN CONDITIONING

This ingredient is a water-soluble, cationic form of hydrolyzed keratin, primarily derived from sheep's wool. It is specifically engineered to enhance skin hydration, reinforce the skin's natural barrier function, and promote a smoother, softer skin texture through its conditioning properties.

Summary

Skin Conditioning Moisturizing Protective Cleansing Antistatic

Science

Mechanism of Action

By undergoing modification with a quaternary ammonium group, this hydrolyzed keratin achieves an isoionic point above 9.5, rendering it a highly cationic material. This positive charge enables it to substantively bind to the skin, forming a continuous, protective film. It effectively improves the skin's moisture retention and water-holding capacity, leading to enhanced hydration and a smoother surface. The integrated hydroxypropyl group further augments its hydrating capabilities and solubility, while its mild surfactant qualities allow for gentle cleansing without compromising skin moisture.

Research

Clinical Evidence

High confidence
Effective range ≤5%
Optimal

3%

Key findings

  1. 01 Studies indicate that Cocodimonium Hydroxypropyl Hydrolyzed Keratin significantly enhances skin's moisture binding and provides beneficial conditioning and protective properties.
  2. 02 Formulations containing hydrolyzed keratin peptides (molecular weight less than 1000 Da) have been shown to increase skin hydration, improve elasticity, and strengthen skin barrier integrity, thereby boosting its water-holding capacity.
  3. 03 An efficacy study of hydrolyzed keratin at a 3% concentration in a hand cream reported no adverse effects while demonstrating its beneficial use for skin moisturization.

Transparency

Dusting Analysis

Not commonly dusted

The provided research data does not contain information regarding this ingredient being commonly 'dusted' or any associated thresholds.

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

The modification with a quaternary ammonium group elevates its isoionic point to above 9.5, resulting in a cationic material. This characteristic suggests robust stability across a wide pH range, maintaining its improved substantivity and enhanced moisture-binding capabilities.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
5%
Sensitization risk Low

The CIR Expert Panel has concluded that keratin and its derivatives, including Cocodimonium Hydroxypropyl Hydrolyzed Hair Keratin, are safe for use in cosmetic products at current practices and concentrations, with a maximum reported concentration of 5%. Studies on Hydrolyzed Keratin reported no dermal irritation at 100% in vitro and up to 25% in human trials, and no sensitization up to 25% in guinea pig studies or 5% in HRIPTs. It is important to note that while human-derived hydrolyzed hair keratin was historically prohibited in EU cosmetics, this ingredient is typically sourced from sheep's wool.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A valuable skin conditioning agent, Cocodimonium Hydroxypropyl Hydrolyzed Hair Keratin effectively boosts hydration, reinforces the skin barrier, and promotes a smooth texture across all skin types due to its unique cationic structure and proven safety profile.

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