Science
Mechanism of Action
As a copolymer, this ingredient likely contributes to formulation integrity through film-forming or binding properties. Its principal cosmetic role is to adjust product viscosity by either increasing or decreasing it. Constituents like phenolic compounds are generally associated with antioxidant activity, potential protection against UV radiation, and modulation of inflammatory responses. However, for this specific copolymer, direct cutaneous benefits are not clinically established. Dimethylol urea, a component, is known for its crosslinking ability, particularly in textile applications.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Observations on related urea-formaldehyde and phenolic-urea resins indicate that neutral or mildly alkaline pH conditions can compromise water tolerance and induce crystallization of dimethylol urea. Furthermore, refrigeration with low free formaldehyde content may lead to precipitate formation. While synthesis of dimethylol urea typically occurs around pH 6-7.5 and certain phenolic resole-urea preparations at pH 3.0-5.8, the specific optimal pH for this copolymer's stability within cosmetic systems is not explicitly defined.
Safety
Safety Profile
While the U.S. EPA deemed a related phenolsulfonic acid-formaldehyde-urea condensate as a pesticide inert ingredient of low human health concern due to poor absorption, key components of this copolymer present significant issues. Phenol is classified as 'Unacceptable' by EWG due to potential risks including cancer, allergies, immunotoxicity, and developmental/reproductive concerns. Dimethylolurea, also listed as 'Unacceptable' by EWG, is a recognized formaldehyde releaser and skin sensitizer, capable of inducing allergic contact dermatitis.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Despite its role in viscosity control, the significant safety concerns stemming from its formaldehyde-releasing and sensitizing components make this ingredient unsuitable for precision skincare formulations.
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