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PEG-10 HYDROGENATED CASTOR OIL.

Valuable CAS 61788-85-0 / SKIN CONDITIONING - EMOLLIENT, SURFACTANT - EMULSIFYING

PEG-10 Hydrogenated Castor Oil is a versatile non-ionic ingredient derived from castor oil, primarily functioning as an emulsifier and solubilizer to create stable cosmetic formulations. It also offers skin-conditioning benefits, enhancing hydration and smoothness across various skin types.

Summary

emulsifier solubilizer surfactant emollient skin conditioning agent humectant

Science

Mechanism of Action

This ingredient functions synergistically within formulations and on the skin. As an emulsifier, it allows the stable integration of oil and water phases, preventing separation in emulsions. It acts as a solubilizer, effectively dispersing oil-soluble compounds like fragrances and essential oils into water-based solutions. Furthermore, its surfactant properties reduce surface tension, aiding in uniform product distribution and gentle cleansing. On the skin, it provides emollient effects, softening and smoothing the epidermal layer, while also forming a protective hydrating film to reduce moisture loss. Its humectant nature draws and retains environmental moisture, contributing to enhanced skin hydration.

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 5.5 – 7
0 7 14

Stability

PEG-10 Hydrogenated Castor Oil exhibits high stability due to its non-ionic nature, remaining active and effective across a broad range of acidic and alkaline conditions. It is soluble in both water and oil phases, facilitating its use in diverse emulsion types. The ingredient demonstrates resistance to oxidation and chemical degradation, which can extend the shelf life and stability of finished products. The optimal pH range of 5.5-7.0 is reported for the chemically similar PEG-40 Hydrogenated Castor Oil, indicating its preferred environment for peak performance.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel concluded that 130 PEGylated oil ingredients, including PEG-10 Hydrogenated Castor Oil, are safe for cosmetic use under current practices, provided formulations are nonirritating. While a specific maximum concentration for PEG-10 Hydrogenated Castor Oil is not explicitly stated beyond 'safe as used', related PEGylated castor oils (e.g., PEG-30, PEG-40) have been deemed safe at concentrations up to 100%. Concerns regarding 1,4-dioxane, a potential ethoxylation by-product, can be mitigated through appropriate purification processes. Castor oil is recognized by the FDA as a permitted food flavoring agent, and PEG castor oil derivatives are also used as indirect food additives in textiles.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PEG-10 Hydrogenated Castor Oil is a valuable multifunctional excipient, essential for creating stable and elegant formulations while offering supportive hydration and skin-conditioning benefits.

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