Science
Mechanism of Action
As a structural component related to glycerophospholipids and ethanolamine, EGP is integral to cell membrane formation, particularly phosphatidylethanolamine, a critical phospholipid in mammalian cells. This enables it to act as a skin conditioning agent, promoting good skin health. Its hydrophilic and emulsifying properties contribute to formulation stability, easy dispersibility, and enhanced skin hydration.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
No data available to suggest common dusting practices or specific dusting thresholds for Ethanolamine Glycerophosphate in cosmetic formulations.
The Formula
Formulation
Stability
Aqueous solutions of ethanolamine are generally stable at room temperature but can react with atmospheric CO2 if not stored in sealed containers. While specific pH ranges for EGP are not provided, related glycerophosphates (e.g., Sodium Glycerophosphate) show stability in parenteral nutrition solutions within a pH range of 5.5 to 6.5 for at least 96 hours in lipid-free formulations. However, these related compounds can exhibit temperature and pH sensitivity in complex mixtures, leading to precipitate formation at 37°C within 72-96 hours due to amino acid degradation and subsequent pH reduction. Formulations containing high lipid amounts may experience coalescence within 24 hours.
Conflicts
- Nitrosating agents: Risk of forming carcinogenic N-nitrosamines, particularly if secondary amino compound impurities are present.
- High concentrations of calcium gluconate: Precipitation observed with related glycerophosphates in complex solutions.
- High lipid amounts: Potential for coalescence in all-in-one formulations over time, as seen with related Sodium Glycerophosphate compounds.
Safety
Safety Profile
Ethanolamine Glycerophosphate has been approved or is subject to restrictions under Annex III of the EC Cosmetics Regulation, following assessment by the SCCS. Restrictions may pertain to purity criteria, maximum concentration, or specific product categories. A primary safety concern is the potential for N-nitroso compound (nitrosamine) formation in cosmetic products if secondary amino compounds exist as impurities. While the CIR Expert Panel concluded ethanolamine and its salts are safe in rinse-off products when nonirritating and not used with N-nitroso compounds, this specific review did not cover Ethanolamine Glycerophosphate. A related compound, Sodium Glycerophosphate, has been reviewed by the FDA for safety in parenteral nutrition applications.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Ethanolamine Glycerophosphate is a valuable skin-identical ingredient that functions as an effective humectant and skin conditioning agent, demonstrating significant in vitro cellular benefits related to metabolism and protection against aging, making it a promising component for comprehensive skin health formulations.
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References
Sources