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Moumoujus

CHITOSAN STEARAMIDE HYDROXYPROPYLTRIMONIUM CHLORIDE.

Valuable / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

A sophisticated cationic film-forming agent derived from chitosan that creates a breathable, bio-adhesive shield over the skin's surface. It combines the structural integrity of chitin with lipid-rich stearamide to reinforce the moisture barrier and repel environmental stressors.

Summary

Film forming Skin conditioning Anti-pollution Antistatic Barrier repair

Science

Mechanism of Action

This molecule utilizes a high-affinity cationic charge to bond with the naturally negative charge of the skin's keratin. Once attached, it deploys a hydrophobic stearamide chain that mimics natural lipids, smoothing the stratum corneum while creating a protective lattice that physically blocks ozone and pollutants without suffocating the skin.

Research

Clinical Evidence

Medium confidence
Effective range 0.5–2%
Optimal

1.5%

Key findings

  1. 01 Demonstrated a minimum 20% reduction in ozone transmission when complexed with specific polymers, providing a significant anti-pollution defense.
  2. 02 Clinical hair and skin surface trials confirmed a measurable 'film effect' that prevents moisture loss and provides superior thermal and frictional protection.

Transparency

Dusting Analysis

Commonly dusted
Min. effective
0.5%
Red flag below
0.1%

Because it is a high-molecular-weight polymer that provides noticeable sensory effects at low levels, brands often include it at 'dusting' concentrations (0.1% or less) just for the label claim. Efficacy for barrier repair and pollution shielding requires at least 0.5%.

The Formula

Formulation

Solubility
Water
Optimal pH 3.5 – 6.5
0 7 14

Stability

Optimal stability is achieved in slightly acidic environments. It is sensitive to alkaline conditions (pH >7.0) which can lead to precipitation.

Synergies

  • Acrylic acid polymers
  • Glycerin
  • Non-ionic emulsifiers

Conflicts

  • Anionic surfactants (SLS/SLES)
  • Carbomers
  • Strongly alkaline bases

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
2%
Pregnancy
Safe
Sensitization risk Low

While the specific derivative is awaiting CIR review, its constituent components (Chitosan and Stearic Acid) are GRAS and widely approved for use in the EU.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

An exceptional ingredient for urban defense and barrier restoration, provided it is formulated within its specific pH and ionic compatibility constraints.

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