Science
Mechanism of Action
This ingredient functions by forming a resilient film on the skin's surface, which strengthens product coatings and gels, provides gloss, and imparts transfer resistance. Its unique cage-like structure and methacrylate groups also enable it to serve as a rheological diluent, improving formulation spreadability, and as an effective carrier for active ingredients, optimizing their delivery.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Exhibits robust thermal stability and offers rapid UV stability, enhancing mechanical properties and providing excellent moisture resistance to formulations.
Conflicts
- Water
- Ethanol (70%)
- Hexane (aliphatics)
- 1,2 Propylene diol
- Fluoralkyls
- Hydroxy Methylcellulose
- Caprylyl Glycol
Safety
Safety Profile
The CIR Expert Panel deemed polysilsesquioxanes, including Methacryloyloxypropyl Polysilsesquioxane, safe for cosmetic use at concentrations up to 4.9%. It demonstrates a low potential for dermal irritation, with general polysilsesquioxanes showing non-irritating properties at 100% concentration in animal studies and high oral LD50s (>5000 mg/kg). While comprehensive systemic toxicity data are limited, the panel considers these molecules to be large, suggesting minimal dermal absorption.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Methacryloyloxypropyl Polysilsesquioxane is a valuable ingredient for advanced formulations requiring durable film formation, enhanced adhesion, transfer resistance, and efficient active ingredient delivery.
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References
Sources