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Moumoujus

POLYDIALLYL PHTHALATE.

Avoid CAS 25053-15-0 / FILM FORMING

Polydiallyl Phthalate is a synthetic linear polymer that forms a solid thermoplastic material. Predominantly used in various industrial applications for its robust physical properties, it lacks established relevance or safety data for use in cosmetic formulations.

Summary

Science

Mechanism of Action

No known mechanism of action on the skin has been identified for Polydiallyl Phthalate.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

This linear polymer is a solid thermoplastic material susceptible to polymerization if not adequately inhibited, particularly when exposed to heat and catalysts. When combined with fillers, it exhibits favorable electrical characteristics under conditions of high humidity and temperature.

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk High

Polydiallyl Phthalate itself has not undergone specific review by the Cosmetic Ingredient Review (CIR) Expert Panel for cosmetic application. While certain related phthalates (Dibutyl, Diethyl, and Dimethyl Phthalate) were deemed safe for topical use in 1985, Dibutyl Phthalate has been re-nominated for a 2024 priority review. The FDA currently indicates no evidence that phthalates, particularly Diethyl Phthalate (DEP) in cosmetics, pose a safety risk. However, phthalates are broadly recognized as potential endocrine disruptors, and some related compounds are classified as carcinogenic, mutagenic, or reprotoxic (CMR) by ECHA. The European Union has largely restricted most phthalate compounds in cosmetic formulas, with Dimethyl Phthalate being the only one still permitted. The monomer, Diallyl Phthalate, caused skin sensitization in mice and is listed as a potential endocrine-disrupting compound.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Avoid

Due to its primary industrial applications, complete lack of established cosmetic benefits, and significant safety concerns associated with the broader phthalate class, Polydiallyl Phthalate is not suitable for precision skincare formulations.

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