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Moumoujus

POLYPROPYLSILSESQUIOXANE.

Valuable CAS 36088-62-7 / FILM FORMING

POLYPROPYLSILSESQUIOXANE is a highly adaptable silicone polymer celebrated for its film-forming capabilities. It provides a lightweight, breathable, and durable barrier on the skin, enhancing product texture and promoting long-lasting wear. This ingredient is pivotal for improving cosmetic application and stability.

Summary

Film-forming Emollient Viscosity controlling Protective Moisture retention Sebum control Skin smoothing Water resistance Product stabilizer Emulsion stabilizer

Science

Mechanism of Action

This ingredient operates by forming a light, flexible, and robust film on the skin, which demonstrably resists wash-off and rub-off. This protective film offers benefits against external environmental factors and helps to maintain the skin's natural moisture balance. Acting as an emollient, it imparts a smooth, silken feel to products, enabling effortless spreadability. It can effectively reduce unwanted shine, subtly smooth skin texture by filling minor imperfections, and significantly improve the water resistance of cosmetic formulations. Furthermore, POLYPROPYLSILSESQUIOXANE enhances overall product stability and aids in the emulsification process.

Research

Clinical Evidence

Low confidence
Effective range 1–30%
Optimal

N/A

Key findings

  1. 01 Direct clinical studies specifically on POLYPROPYLSILSESQUIOXANE's efficacy on skin were not identified in published literature or submitted to regulatory bodies. However, its use in cosmetic compositions, such as eyeshadows at concentrations between 1% and 30%, is noted for contributing to creamy texture, extended wear, superior product pick-up, even lay down, and high color impact. Derivatives, like C30-45 Alkyldimethylsilyl Polypropylsilsesquioxane, have been utilized at 4.9% in foundations, 1% in lipsticks, and 3% in non-spray suntan products, demonstrating its role in enhancing product performance and feel.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Significantly contributes to formulation stability, ensuring uniform ingredient dispersion and aiding in the stabilization of emulsions.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
30%
Sensitization risk Low

The CIR Expert Panel has thoroughly assessed POLYPROPYLSILSESQUIOXANE and related polysilsesquioxane ingredients, concluding their safety for cosmetic use within current industry practices and concentrations. Both the US Food and Drug Administration (FDA) and European Cosmetics Regulation acknowledge its safety. Typical concentrations in cosmetic formulations range from approximately 1% to 30%.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

POLYPROPYLSILSESQUIOXANE is a valuable film-forming emollient that significantly enhances product texture, wear, and stability across a wide range of cosmetic and skincare formulations, offering broad skin compatibility with a low risk of irritation or comedogenicity.

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