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Moumoujus

PEG-30 STEARATE.

Valuable CAS 9004-99-3 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

PEG-30 Stearate is a versatile ethoxylated fatty acid ester primarily utilized in skincare formulations as an emulsifier and surfactant. It is crucial for stabilizing oil-in-water emulsions, ensuring product consistency, and contributing to effective cleansing.

Summary

Emulsifying Surfactant Suspending Solubilizing Consistency-enhancing

Science

Mechanism of Action

PEG-30 Stearate functions by reducing the interfacial tension between immiscible liquids like oil and water, thus stabilizing emulsions and creating a uniform product texture. As a surfactant, it lowers the surface tension of the skin's outermost layer (stratum corneum), facilitating the removal of surface impurities and dirt. Additionally, it offers suspending, solubilizing, and consistency-enhancing properties to cosmetic systems.

Research

Clinical Evidence

High confidence
Effective range ≥0.2%
Optimal

N/A

Key findings

  1. 01 The Cosmetic Ingredient Review (CIR) Expert Panel concluded that PEG Stearates, including PEG-30 Stearate, were neither irritants nor sensitizers at concentrations up to approximately 25%.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

The amount of emulsifying agent is a critical factor affecting emulsion stability. PEG-30 Stearate contributes to smooth and consistent texture in formulations. PEGs are generally considered well-tolerated and not microbiologically sensitive.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
100%
Sensitization risk Low

Reaffirmed as safe by the CIR in 2005 and 2024, an earlier caveat regarding use on damaged skin was removed in 2010 due to sufficient safety data. While PEG-30 Stearate's specific maximum safe concentration for cosmetic use isn't firmly established, related PEG compounds have been examined at concentrations up to 100% with no cause for concern. General concerns exist regarding potential trace impurities like ethylene oxide and 1,4-dioxane from the ethoxylation process. Notably, PEG compounds are also permitted as food additives by the FDA.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PEG-30 Stearate is a valuable and well-tolerated multi-functional ingredient that enhances product texture and stability while offering gentle cleansing properties, suitable for all skin types.

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