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Moumoujus

PEG-20 COCAMIDE.

Questionable CAS 68425-44-5 / SURFACTANT - EMULSIFYING

PEG-20 Cocamide is a polyethylene glycol derivative of cocamide MEA, functioning primarily as an emulsifier and surfactant. It facilitates the blending of oil and water phases in cosmetic formulations, enhancing product stability and texture.

Summary

Emulsifying Surfactant Solubilizing Cleansing Foam Booster Antistatic

Science

Mechanism of Action

This ingredient, a product of pegylation, acts as a multi-functional agent by reducing the surface tension between disparate ingredients like oil and water. Its surfactant properties increase water solubility, allowing for stable emulsions. Beyond emulsification, it contributes to cleansing, boosts foam, and offers antistatic benefits.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Conflicts

  • should not be used in cosmetic products in which N-nitroso compounds can be formed

Safety

Safety Profile

CIR Status
Safe with restrictions
Sensitization risk Moderate

The Cosmetic Ingredient Review (CIR) Expert Panel concluded that PEG-20 Cocamide is safe for cosmetic use, provided it is formulated to be non-irritating and specific restrictions are met. Manufacturers must minimize impurities such as 1,4-dioxane and primary amines, and rigorously ensure the ingredient is not used in products where N-nitroso compounds can form. While generally considered to have low irritancy and comedogenicity (according to Incidecoder), the potential for skin irritation, allergic reactions, and contact dermatitis has been noted, suggesting individual patch testing. Furthermore, some authoritative sources, including California's OEHHA Proposition 65 List and the National Toxicology Program, have identified concerns regarding its potential as a carcinogen or reproductive toxin. The FDA has not explicitly defined its status for cosmetic use in the provided data.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
No Oily
No Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Questionable

PEG-20 Cocamide is a multi-functional emulsifier and surfactant, however, its use is questionable for precision formulations due to critical safety restrictions, including potential impurity concerns and noted reproductive/carcinogenic risks from certain authoritative sources.

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