Science
Mechanism of Action
On the skin, this cationic surfactant forms a gentle, invisible film, contributing to reduced flakiness, soothed irritation, and protection against moisture loss by strengthening the skin's barrier. As a cationic emulsifier, it also improves product texture, aids in active ingredient delivery, and enhances moisturization in creams and lotions.
Research
Clinical Evidence
Medium confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This ingredient maintains stability within a pH range of 3-7 and is heat tolerant. However, it is advisable to avoid temperatures exceeding 80°C during its incorporation into the oil phase.
Synergies
- Fatty alcohols (e.g., Cetyl Alcohol)
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has not specifically reviewed Distearyldimonium Chloride; however, they have assessed the broader category of Alkyl Quaternary Ammonium Compounds (QACs). While regulatory bodies acknowledge its safety within recommended limits, QACs, including this ingredient, are associated with a high risk of irritation (skin, eyes, lungs), with eye exposure classified as causing serious damage. Furthermore, some QACs have been linked to reproductive toxicity in animals, altered neurodevelopment in cells, increased inflammation, decreased mitochondrial function, and cholesterol disruption in human blood.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While offering notable formulation and conditioning benefits, the significant irritation concerns and broader safety profile associated with quaternary ammonium compounds render Distearyldimonium Chloride a questionable choice for precision skincare.
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