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Moumoujus

PEG-5 TRIMETHYLOLPROPANE TRIMYRISTATE.

Questionable / SURFACTANT - EMULSIFYING

PEG-5 TRIMETHYLOLPROPANE TRIMYRISTATE is a synthetic ester that functions primarily as an emulsifier, emollient, and texture enhancer in skincare formulations. It contributes to a smoother skin feel, aids in maintaining hydration by supporting the skin barrier, and facilitates stable emulsion formation.

Summary

Emulsifier Emollient Texture Enhancer

Science

Mechanism of Action

This ingredient operates on multiple fronts: as an emollient, it delivers a protective lipid layer to the skin, enhancing smoothness and reducing transepidermal water loss to strengthen the skin barrier. As an emulsifier, it effectively reduces the surface tension between immiscible phases, allowing oil and water to combine homogenously and form stable emulsions.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Polyethylene glycols (PEGs) and their derivatives are recognized for their robust stability, exhibiting resistance to oxidative degradation in cosmetic formulations.

Safety

Safety Profile

CIR Status
Safe as used (general PEG derivatives)
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has generally deemed various PEG compounds safe for use in cosmetics. While a specific safety assessment for PEG-5 TRIMETHYLOLPROPANE TRIMYRISTATE was not identified, general PEGs are considered minimally irritating and non-sensitizing on intact human skin. However, concern exists regarding its petrochemical origin and the potential presence of 1,4-dioxane, a byproduct of the ethoxylation process, which is classified as a suspected carcinogen. Consequently, this ingredient is often restricted in organic cosmetics and is noted by the EWG Skin Deep database for 'some' concerns related to impurities like 1,4-dioxane and ethylene oxide, requiring further substantiation for use in EWG VERIFIED products.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Questionable

While effective as an emollient and emulsifier for enhancing texture and skin hydration, the ingredient's petrochemical origin and potential for 1,4-dioxane contamination introduce significant formulation and safety concerns for precision skincare.

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