Science
Mechanism of Action
As a cationic compound, HYDROGENATED STARCH HYDROLYSATE HYDROXYPROPYLTRIMONIUM CHLORIDE functions by binding electrostatically to the negatively charged surfaces of the skin. This interaction creates a smooth film, thereby delivering conditioning effects, promoting a softer and more supple skin feel, and aiding in moisture retention through humectant and film-forming properties. It also contributes to formula viscosity as a thickening agent.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Safety
Safety Profile
While a direct Cosmetic Ingredient Review (CIR) report for this specific ingredient is not available, broader categories like polysaccharide gums and galactomannans, which encompass similar guar derivatives, have generally been deemed safe by CIR at current use concentrations. Information on related ingredients, such as Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, suggests safe use in cosmetics up to 0.05%, with potential for irritation at concentrations exceeding 1%. The Environmental Working Group (EWG) rates this ingredient with a 'low' concern for developmental and reproductive toxicity and 'low' use restrictions. However, INCI Beauty assigns a 'medium penalty' across all categories for this ingredient, indicating some potential concerns.
Your Skin
Skin Compatibility
Our Assessment
Verdict
HYDROGENATED STARCH HYDROLYSATE HYDROXYPROPYLTRIMONIUM CHLORIDE is a valuable conditioning and texturizing agent that enhances skin feel and moisture, although its direct safety profile requires further targeted research for definitive concentration guidance.
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