Science
Mechanism of Action
This ingredient functions as a trifunctional acrylate monomer, possessing three acrylate groups that facilitate rapid polymerization and robust crosslinking. It contributes to the formation of stable polymer networks with a balance of flexibility and strength. Chemically, it demonstrates an ability to bind covalently and irreversibly to outer cell membrane surfaces.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
Given its primary application in industrial polymers, coatings, and adhesives, Pentaerythrityl Triacrylate is not an ingredient typically 'dusted' into cosmetic formulations. Its inherent reactivity and polymerization characteristics make such an application impractical and unsafe.
The Formula
Formulation
Stability
This chemical is hygroscopic and highly susceptible to polymerization, particularly when exposed to localized heat and ultraviolet light. It requires stabilization with 300-400 ppm of hydroquinone monomethyl ether (MEHQ), with the inhibitor's efficacy dependent on the presence of dissolved oxygen. Formulators should avoid blanketing or mixing with oxygen-free gases.
Conflicts
- strong oxidizing agents
- strong acids
- strong bases
- reducing agents
- heat
- UV radiation/sunlight
Safety
Safety Profile
Pentaerythrityl Triacrylate is classified as moderately toxic via ingestion and skin contact, and is a severe irritant to both skin and eyes. Under Regulation (EC) No 1272/2008 (CLP), it is categorized as causing skin irritation (H315), serious eye irritation (H319), and potentially an allergic skin reaction (H317). It acts as a strong sensitizing agent, with human patch tests producing intense allergic reactions at concentrations of 0.1% (in Vaseline®) and 0.2% (in alcohol). Positive responses in local lymph node assays were observed at 0.05% and higher. Concerns exist regarding its carcinogenic potential, as experimental tumorigenic data and conflicting genotoxicity data render its classification as a genotoxic or non-genotoxic carcinogen uncertain. While studies have been conducted in compliance with FDA Good Laboratory Practice Regulations, its specific FDA status for cosmetic use is not available. The New Zealand EPA has approved its use, but with stringent controls. Skin disorders have been reported at a 2.2% concentration when incorporated into protective glove formulations.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Due to its potent sensitizing properties, high potential for skin and severe eye irritation, and unconfirmed carcinogenic profile, Pentaerythrityl Triacrylate is entirely unsuitable for use in cosmetic formulations.
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References
Sources