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PEG-7 RICINOLEATE.

Valuable CAS 9004-97-1 / SURFACTANT - EMULSIFYING

PEG-7 RICINOLEATE is a multi-functional ethoxylated castor oil derivative, specifically engineered to enhance the stability and feel of skincare formulations. It functions primarily as an effective emulsifier, a gentle surfactant, and a skin-softening emollient, making it a versatile component in various cosmetic products.

Summary

Emulsifier Surfactant Emollient

Science

Mechanism of Action

On the skin, PEG-7 RICINOLEATE operates through a triple-action mechanism. As an emollient, it forms a lightweight, occlusive barrier, which effectively minimizes trans-epidermal water loss and promotes a smooth, supple skin feel. Its surfactant properties reduce surface tension, enabling oils and water to mix, thereby facilitating effective cleansing by solubilizing impurities for easier rinsing. Concurrently, as an emulsifier, it ensures the uniform dispersion and stability of oil and water phases within a product, contributing to a consistent and aesthetically pleasing formulation texture.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 A dietary application of glyceryl polyethylene glycol ricinoleate (GPGR) was observed to improve intestinal health in weaned piglets. This improvement included increased citrullinemia, enhanced intestinal morphology (evidenced by greater villus height, improved villus height:crypt depth ratio, and increased intestinal absorption area), and elevated enzymatic maltase activity.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 5 – 8
0 7 14

Stability

Expected to maintain stability within a pH range of 5.0 to 8.0. Generally stable across a broad pH spectrum, though stability may be compromised in strongly acidic or alkaline conditions.

Conflicts

  • Strong acids
  • Strong alkalis

Safety

Safety Profile

CIR Status
Safe as used with restrictions
Max tested
97%
Sensitization risk Unknown

The CIR Expert Panel concluded that PEGylated oil ingredients, including PEG castor oil derivatives, are safe for use in cosmetics under current practices and concentrations, provided formulations are non-irritating. A maximum use concentration of 97% was reported for a closely related ingredient (olive oil PEG-7 esters) in rinse-off shaving products. There are known concerns regarding potential trace impurities of ethylene oxide and 1,4-dioxane; however, these can be effectively minimized or eliminated through robust purification steps during manufacturing.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PEG-7 RICINOLEATE is a valuable ingredient for its versatile emulsifying, surfactant, and emollient properties, contributing to stable formulation textures and skin comfort, with a generally favorable safety profile when appropriately purified.

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