Science
Mechanism of Action
Upon application, ISOBUTYLMETHACRYLATE/BIS-HYDROXYPROPYL DIMETHICONE ACRYLATE COPOLYMER forms a continuous film as its volatile carrier evaporates. This film is characterized by its flexibility, breathability, and notable resistance to water, oil, and abrasion, thereby extending the wear of cosmetic formulations. On the skin, it contributes to a smoother texture and provides conditioning benefits by forming a surface barrier.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
While specific optimal pH stability for this copolymer is not explicitly detailed, a related ingredient, Acrylates Copolymer, is reported to be stable across an extensive pH range. A 5% solution of this related Acrylates Copolymer typically presents a pH between 4.0 and 5.0, suggesting suitability for various acidic and alkaline formulations.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has not specifically reviewed ISOBUTYLMETHACRYLATE/BIS-HYDROXYPROPYL DIMETHICONE ACRYLATE COPOLYMER. However, they have deemed a broader group of 126 acrylates copolymers safe for cosmetic use when formulated to be non-irritating. Separately, related dimethicone components have been assessed as safe conditioning agents at concentrations up to 15%, with no systemic absorption. In contrast, the Environmental Working Group (EWG) raises significant concerns specifically for this copolymer, citing its environmental persistence, lack of anaerobic degradability, and potential for long-lasting harm to aquatic life. Furthermore, EWG expresses suspicion of damaging fertility, provides clear evidence of endocrine disruption in at least one animal study, and labels it 'Restricted' for EWG VERIFIED products due to high contamination concerns and potential risks for allergies, immunotoxicity, and developmental/reproductive toxicity. No specific SCCS or FDA status was found for this exact copolymer.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Despite its effectiveness as a film-former and skin conditioner, the significant concerns raised by EWG regarding environmental persistence, potential endocrine disruption, reproductive toxicity, and immunotoxicity necessitate its avoidance in precision skincare formulations.
Related
Similar Ingredients
Finding similar ingredients…