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STEARDIMONIUM ETHYL CETYL PHOSPHATE.

Insufficient Data CAS - / HAIR CONDITIONING, SKIN CONDITIONING

This multi-functional ingredient serves primarily as an emulsifier and surfactant, enabling the stable blending of disparate oil and water phases within a formulation. Its unique structure also imparts conditioning properties, contributing to enhanced skin feel and product texture.

Summary

Emulsifier Surfactant Skin Conditioning Agent Viscosity Enhancer Texture Enhancer

Science

Mechanism of Action

STEARDIMONIUM ETHYL CETYL PHOSPHATE operates by reducing the interfacial tension between immiscible liquids, acting effectively as an emulsifier to stabilize emulsions. Its quaternary ammonium moiety also confers conditioning benefits by adsorbing onto surfaces, leading to improved skin softness and reduced static charge. Additionally, the broader class of alkyl phosphates, to which this ingredient belongs, is known to contribute positively to overall formulation texture and viscosity.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

While precise optimal pH stability data for STEARDIMONIUM ETHYL CETYL PHOSPHATE is not specifically documented, related emulsifiers like Potassium Cetyl Phosphate demonstrate stability within a pH range of 5 to 9. Formulations utilizing anionic phosphate emulsifiers may benefit from co-emulsification with a lipophilic counterpart to mitigate the potential for insoluble crystal formation.

Conflicts

  • Cationic ingredients (requires careful checking)
  • Metal salts (requires careful checking)
  • Alkaline earth metals (requires careful checking)

Safety

Safety Profile

CIR Status
Insufficient data
Sensitization risk Unknown

No direct safety assessment for STEARDIMONIUM ETHYL CETYL PHOSPHATE (also identified as Cetyldimonium ethyl cetyl phosphate, CAS 1151517-98-4) has been conducted by the Cosmetic Ingredient Review (CIR) Expert Panel or SCCS. The CIR Panel did review a broader family of 28 'Alkyl Phosphates', concluding them safe in cosmetics when formulated to be non-irritating. This ingredient possesses a molecular weight of 618.0 g/mol; while compounds with molecular weights ≥603 are generally less prone to skin penetration, its XLogP3 of 14.5 is below the ≥17.02 threshold suggested for negligible absorption. Concerns exist regarding general Quaternary Ammonium Compounds (QACs), which have been associated with potential irritation and dermatitis, particularly in disinfectant applications and at higher exposure levels.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Insufficient Data

While offering promising functionalities as an emulsifier and conditioning agent, comprehensive safety and efficacy data for STEARDIMONIUM ETHYL CETYL PHOSPHATE is currently insufficient to determine its overall suitability for precision skincare formulations.

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