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ISOCETETH-10 STEARATE.

Questionable / SURFACTANT - EMULSIFYING

ISOCETETH-10 STEARATE is a synthetic ester primarily functioning as an emulsifier, expertly blending oil and water phases to create stable cosmetic formulations. It also imparts skin conditioning and emollient benefits, enhancing skin smoothness and moisture retention.

Emulsifier Skin Conditioner Emollient

Science

This ingredient acts as an emulsifier by reducing the surface tension between immiscible liquids like oil and water, enabling them to form stable emulsions. As an ester, it additionally contributes to skin conditioning, forming a delicate barrier that minimizes transepidermal water loss and leaves the skin feeling soft and supple.


Research

Insufficient-data confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Oil
Optimal pH 6 – 7
0 7 14

Stability

ISOCETETH-10 STEARATE demonstrates optimal stability within a pH range of 6.0 to 7.0. Being highly soluble in oil and insoluble in water, it is well-suited for oil-in-water emulsion systems. It shows excellent compatibility with common formulation components such as oils, waxes, and silicones.

Synergies

  • Oils
  • Waxes
  • Silicones

Safety

CIR Status
Not reviewed
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has not evaluated ISOCETETH-10 STEARATE directly. EWG reports low concerns regarding cancer, allergies, immunotoxicity, and developmental/reproductive toxicity. However, high contamination concerns are noted, particularly for impurities like 1,4-dioxane, which can arise from its ethoxylation process. Although general sensitization risk is low, individuals with sensitive skin are advised to perform patch testing as a precautionary measure due to varying individual reactions.


Your Skin

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

Our Assessment

Questionable

While effective as an emulsifier and offering emollient properties, its 'not reviewed' CIR status and noted contamination concerns warrant a cautious approach to its inclusion.


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