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DIISOPROPANOLAMINE/METHYLHEXAHYDROPHTHALIC ANHYDRIDE ETHYLHEXANOATE COPOLYMER.

Insufficient Data CAS 1590416-18-4 / FILM FORMING

This complex copolymer is understood primarily through its constituent compounds, Diisopropanolamine (DIPA) and Methylhexahydrophthalic Anhydride (MHHPA), alongside a closely related nonanoate copolymer. Its presumed function in cosmetic formulations is to create a protective film on the skin's surface. However, specific efficacy and comprehensive safety data directly pertaining to this precise ethylhexanoate form are currently limited.

Film Forming

Science

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

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Unknown
Optimal pH N/A
0 7 14

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

CIR Status
No direct assessment for copolymer
Sensitization risk High

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

No Normal
No Dry
No Oily
No Sensitive
Irritancy High
Comedogenicity Unknown

Our Assessment

Insufficient Data

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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