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PEG-100 HYDROGENATED CASTOR OIL.

Valuable CAS 61788-85-0 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

PEG-100 Hydrogenated Castor Oil is a versatile ingredient derived from hydrogenated castor oil, modified to enhance its functionality. Primarily serving as an emulsifier and surfactant, it enables stable formulations of oil and water while also offering significant conditioning and moisturizing benefits to the skin.

Summary

Emulsifying Surfactant Solubilizing Cleansing Agent Emollient Humectant Occlusive Agent Skin Conditioning Agent Anti-inflammatory

Science

Mechanism of Action

This ingredient operates fundamentally as an emulsifier, expertly bridging oil and water phases to create stable, uniform product textures. It also functions as a surfactant, lowering surface tension to facilitate thorough cleansing and solubilization of other ingredients that are typically challenging to dissolve. On the skin, it acts as a cleansing agent, effectively removing impurities and makeup. It imparts emollient properties for a smooth, soft skin feel, and as a humectant, it draws moisture into the skin, preventing dehydration. Furthermore, it creates a subtle occlusive barrier to minimize transepidermal water loss, contributing to overall skin conditioning, sebum balance for oily skin, enhanced moisture retention for dry skin, and anti-inflammatory effects that can calm sensitive skin and support stratum corneum lipid stability for repair.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

Information regarding 'dusting' or potential for ingredient over-promotion is not available in the provided research data for PEG-100 Hydrogenated Castor Oil.

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

Demonstrates broad pH stability, remaining active under both acidic and alkaline conditions. It exhibits resistance to oxidation and chemical degradation, which contributes to extended product shelf life and maintains the integrity of sensory attributes and efficacy. For optimal integration, it is recommended to blend into the oil phase, for instance, at a 3:1 ratio with the oil, before incorporating into the water phase. Adjusting the concentration can also enhance product clarity in potentially cloudy formulations.

Safety

Safety Profile

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

The CIR Expert Panel concluded that PEGylated oils, including PEG-100 Hydrogenated Castor Oil, are safe for use in cosmetics when formulated to be non-irritating. Related ingredients, PEG-30 and PEG-40 Hydrogenated Castor Oil, have been deemed safe at concentrations up to 100% and are FDA-approved as food additives. While 1,4-dioxane, a by-product of ethoxylation, may be present in minimal quantities, it can be effectively controlled through purification processes. Its use in Europe is generally permitted under the Cosmetics Regulation of the European Union, in line with related PEG Castor Oils.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PEG-100 Hydrogenated Castor Oil is a valuable ingredient due to its multifaceted role as an emulsifier, cleansing agent, and skin conditioner, complemented by a strong safety profile.

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