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PEG-10 GLYCERYL ISOSTEARATE.

Questionable / SKIN CONDITIONING - EMOLLIENT, SURFACTANT - EMULSIFYING

PEG-10 Glyceryl Isostearate is a versatile cosmetic ingredient primarily functioning as an emulsifier and surfactant, enabling the stable blending of oil and water phases in formulations. It also contributes to skin hydration and an improved tactile feel through its humectant and emollient properties, while serving as a solubilizer for various active compounds.

Summary

Emulsifying Agent Surfactant Solubilizer Humectant Emollient Solvent

Science

Mechanism of Action

This ingredient operates by significantly reducing the interfacial tension between otherwise incompatible liquid phases, such as oil and water, facilitating the formation of stable emulsions. As a surfactant, it aids in effective skin cleansing. On the skin, it functions as a humectant to attract and retain moisture and as an emollient to soften and smooth the skin's surface, thus enhancing overall skin feel and moisture balance. It also acts as a solubilizer and solvent for other formulation components.

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

PEG-10 Glyceryl Isostearate is generally regarded as chemically stable, exhibiting good compatibility with a wide range of moisturizing oils and fats. Its versatility allows for seamless incorporation into both water-based and oil-based product formulations.

Synergies

  • Moisturizing oils and fats

Conflicts

  • Compromised or damaged skin (general precaution for PEGs)
  • Certified organic cosmetic formulations (prohibited due to ethoxylation process and potential 1,4-dioxane contamination)

Safety

Safety Profile

CIR Status
Insufficient data
Sensitization risk Unknown

EWG Skin Deep indicates that PEG-10 Glyceryl Isostearate has not undergone a dedicated safety assessment by an industry panel or within peer-reviewed scientific literature. While polyethylene glycols (PEGs) as a class are generally considered safe for cosmetic use under current conditions, a precaution is advised against their application on damaged skin. A significant concern with this ingredient, stemming from its ethoxylation manufacturing process, is the potential for contamination with impurities such as ethylene oxide and 1,4-dioxane.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Questionable

Despite its multifaceted functionality as an emulsifier, surfactant, and humectant, the absence of specific safety assessments and the documented concern regarding manufacturing impurities render PEG-10 Glyceryl Isostearate a questionable choice for precision skincare.

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