Science
Mechanism of Action
The polymer operates by creating a cohesive, continuous film upon application, which helps to bind ingredients, provide structure, and potentially offer a barrier. Its polymeric structure also allows it to modify the rheological properties of a product, either increasing or decreasing its overall viscosity.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
A key component, Sucrose Acetate Isobutyrate (SAIB), demonstrates robust thermal and hydrolytic stability. It is also resistant to UV light degradation. While SAIB itself is highly viscous at 100% concentration, low-viscosity blends are commercially available for easier incorporation into formulations.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Panel determined that methacrylate ester monomers, including Methyl Methacrylate (a component of this copolymer), pose a sensitizing potential. Therefore, their use in nail products is considered safe only when direct skin contact is carefully avoided. For the complete copolymer, CIR data is insufficient. Sucrose Acetate Isobutyrate (SAIB), another component, is recognized as Generally Recognized As Safe (GRAS) by the FDA for specific food applications, with a maximum allowable amount of 300 ppm in certain alcoholic beverages. However, specific safety assessments or maximum concentration guidelines for the entire SUCROSE BENZOATE/SUCROSE ACETATE ISOBUTYRATE/BUTYL BENZYL PHTHALATE/METHYL METHACRYLATE COPOLYMER in topical skincare are currently unavailable.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While offering film-forming and viscosity-controlling properties, the copolymer's CIR status of 'insufficient data' for the complete ingredient, coupled with a component's known sensitizing potential if skin contact is not avoided, raises significant concerns for precision skincare applications.
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