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HYDROXYPROPYLTRIMONIUM HYDROLYZED WHEAT STARCH.

Valuable CAS - / ANTISTATIC, HAIR CONDITIONING

A modified wheat starch derivative, Hydroxypropyltrimonium Hydrolyzed Wheat Starch functions as a hydrating and film-forming agent, designed to enhance skin's moisture retention and provide a smoother, softer feel. It contributes to robust barrier function and supports a more resilient skin texture.

Summary

Humectant Moisturizing Film Forming Skin Conditioning Texture Enhancer Soothing Barrier Support

Science

Mechanism of Action

This ingredient operates as a sophisticated hydrating complex, leveraging its dextrins and oligosaccharides to efficiently attract and bind moisture within the skin. It forms a protective, invisible film on the skin's surface, which not only locks in hydration but also shields against environmental aggressors. The presence of derived vitamins and amino acids further refines skin texture, promoting suppleness and elasticity, while bioactive compounds offer soothing benefits. Its dual moisturizing and film-forming actions visibly diminish the appearance of fine lines and wrinkles, concurrently bolstering the skin's natural barrier against external irritants.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 A study investigating a related complex (Hydrolyzed wheat protein and hydrolyzed wheat starch) demonstrated increased substantivity to normal hair, rapidly improving at 2% actives and plateauing above 5% actives, suggesting conditioning benefits. This specific study focuses on hair and is not directly applicable to skin efficacy for Hydroxypropyltrimonium Hydrolyzed Wheat Starch.

Transparency

Dusting Analysis

Not commonly dusted

There is no available data to suggest that Hydroxypropyltrimonium Hydrolyzed Wheat Starch is commonly dusted or has associated dusting thresholds. Its nature as a water-soluble ingredient typically minimizes such concerns in cosmetic formulations.

The Formula

Formulation

Solubility
Water
Optimal pH 3.5 – 5.5
0 7 14

Stability

While direct stability data for Hydroxypropyltrimonium Hydrolyzed Wheat Starch is limited, related modified starches exhibit good resistance to swelling and maintain stability in low pH environments, particularly stable above pH 3.5 and within ranges of pH 4.5 to 5.5.

Safety

Safety Profile

CIR Status
Safe with restrictions
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has deemed related ingredients, hydrolyzed wheat gluten and hydrolyzed wheat protein, safe for cosmetic use when formulated to restrict peptides to a weight-average molecular weight of 3500 Da or less, or to minimize peptide lengths greater than 30 amino acids. For these related proteins, use on damaged skin, in products that may contact mucous membranes, or those subject to incidental inhalation should be avoided. However, Hydroxypropyltrimonium Hydrolyzed Wheat Starch itself is generally considered safe and well-tolerated by most skin types, including sensitive skin, with no adverse effects reported or expected. As a modified starch, its base (hydroxypropyl starch) is recognized as safe by the FDA for direct food addition, with usage levels up to 5% in specific food categories.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Hydroxypropyltrimonium Hydrolyzed Wheat Starch is a valuable ingredient for skin hydration and barrier support, offering film-forming properties and compatibility with most skin types, despite limited direct clinical efficacy data for skin applications.

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