Science
Mechanism of Action
This ingredient is understood to function as a film-former. This mechanism, extrapolated from a related nonanoate copolymer, involves the creation of a thin, often occlusive, layer on the skin's surface. This film can contribute to properties such as improved texture, enhanced product hold, or a strengthened barrier function.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
The stability profile of this copolymer is significantly influenced by its Methylhexahydrophthalic Anhydride (MHHPA) component, which exhibits marked moisture sensitivity. MHHPA is known to crystallize upon exposure to air moisture, indicating that formulations incorporating this copolymer must be rigorously protected from humidity to preserve its integrity and performance characteristics.
Conflicts
- N-nitrosating agents (due to the Diisopropanolamine component, to prevent the potential formation of nitrosamines)
- Moisture (a critical incompatibility due to the high moisture sensitivity of the Methylhexahydrophthalic Anhydride component)
- Strong oxidizing agents (likely to induce degradation or undesirable chemical reactions)
- Strong bases (likely to compromise polymer structure and stability)
- Strong acids (likely to compromise polymer structure and stability)
Safety
Safety Profile
While Diisopropanolamine (DIPA), one of its constituents, has been deemed safe for cosmetic applications by the CIR Expert Panel under the restriction of avoiding products containing N-nitrosating agents, the Methylhexahydrophthalic Anhydride (MHHPA) component presents considerable safety concerns. MHHPA is recognized to cause allergic skin reactions, serious eye damage, and respiratory sensitization if inhaled, and is also irritating to the skin and eyes. Crucially, no specific safety assessment by regulatory bodies such as CIR, SCCS, or FDA has been found for the exact DIISOPROPANOLAMINE/METHYLHEXAHYDROPHTHALIC ANHYDRIDE ETHYLHEXANOATE COPOLYMER.
Your Skin
Skin Compatibility
Our Assessment
Verdict
With a significant paucity of specific safety and efficacy data for this copolymer, compounded by substantial known risks associated with its Methylhexahydrophthalic Anhydride component, Moumoujus advises against its current incorporation into precision skincare formulations.
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