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POTASSIUM PEG-50 HYDROGENATED CASTOR OIL SUCCINATE.

Valuable / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

POTASSIUM PEG-50 HYDROGENATED CASTOR OIL SUCCINATE is a multifunctional ingredient primarily recognized for its surfactant and emulsifying capabilities, which are crucial for creating stable and homogenous cosmetic formulations. Beyond its role in product texture, it also functions as an emollient and humectant, contributing to enhanced skin hydration and barrier support.

Summary

emulsifying surfactant emollient humectant

Science

Mechanism of Action

This ingredient acts as a surfactant, effectively lowering the surface tension between immiscible liquids, thereby enabling oil and water to combine uniformly into stable emulsions. It supports skin health by forming a protective layer on the surface, which assists in minimizing transepidermal water loss and significantly boosting the skin's inherent capacity for moisture retention. Its cleansing properties facilitate the removal of dirt and oil, promoting a balanced skin environment, and it is generally well-tolerated across various skin types.

Research

Clinical Evidence

Low 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

Stability

As a hydrophilic polyethylene glycol (PEG) derivative, this ingredient exhibits excellent water solubility, though solubility may decrease with higher molar mass. It is particularly effective as a solubilizer in formulations with low alcohol content and enhances overall product stability by preventing the separation of oil and water phases, thus maintaining a consistent texture.

Safety

Safety Profile

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

The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that related PEGylated oils, including those from which this ingredient is derived, are safe for use in cosmetics at concentrations up to 100% when formulated to be non-irritating. The FDA permits castor oil as a direct food additive, and PEG Castor Oil derivatives are approved as indirect food additives. Trace amounts of 1,4-dioxane, a processing byproduct, can be controlled through standard purification methods. EWG Skin Deep assesses low concerns for cancer, allergies, immunotoxicity, and developmental/reproductive toxicity, while noting a high concern for contamination if formulations do not adhere to strict safety protocols.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

POTASSIUM PEG-50 HYDROGENATED CASTOR OIL SUCCINATE is a valuable ingredient for its dual benefits as an effective emulsifier and surfactant, while also contributing to skin hydration and comfort with a favorable safety profile.

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