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Moumoujus

MYRISTYLAMIDOPROPYL DIMETHYLAMINE DIMETHICONE PEG-7 PHOSPHATE.

Questionable CAS 137145-36-9 / HAIR CONDITIONING

This complex silicone derivative combines the film-forming benefits of dimethicone with the enhanced solubility and emulsifying properties of a PEG modification. It functions primarily as a skin and hair conditioning agent, providing a protective barrier and improving product texture and spreadability.

Summary

Hair Conditioning Surfactant Cleansing Emulsifying

Science

Mechanism of Action

MYRISTYLAMIDOPROPYL DIMETHYLAMINE DIMETHICONE PEG-7 PHOSPHATE operates through a dual mechanism. Its dimethicone components form a breathable, protective film on the skin or hair surface, effectively reducing transepidermal water loss and shielding against environmental aggressors. This film also enhances lubricity and slip, contributing to a smoother feel and improved product flow. The integrated PEG (Polyethylene Glycol) group imparts surfactant and emulsifying capabilities, improving water dispersibility for better ingredient deposition in rinse-off applications and enhancing overall product stability.

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

The PEG modification is specifically designed to enhance water solubility or dispersibility, particularly beneficial for effective deposition in rinse-off formulations. While no specific optimal pH range is detailed, PEG derivatives are generally known for their stability across a broad pH spectrum. Formulators are advised to optimize its inclusion based on specific application requirements and interactions with other components.

Safety

Safety Profile

CIR Status
Insufficient data
Sensitization risk Moderate

The Cosmetic Ingredient Review (CIR) has reported 'insufficient data' for MYRISTYLAMIDOPROPYL DIMETHYLAMINE DIMETHICONE PEG-7 PHOSPHATE. While related dimethicone ingredients are generally considered safe at low concentrations and approved by the FDA as skin protectants, the ethoxylated nature of this specific ingredient raises significant concerns. One source rates it 'Muy Dudoso' (Very Dubious) due to potential links between ethoxylated substances (formed with ethylene oxide) and carcinogenicity (lymphomas and leukemia).

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Moderate
Comedogenicity Low

Our Assessment

Verdict

Questionable

While offering beneficial conditioning and emulsifying properties across various skin types, the current 'insufficient data' status from CIR and documented concerns regarding the potential carcinogenicity of its ethoxylated component make this ingredient questionable for precision skincare formulations.

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