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PEG-4 RAPESEEDAMIDE.

Valuable CAS 85536-23-8 / VISCOSITY CONTROLLING

PEG-4 Rapeseedamide is a versatile non-ionic surfactant derived from rapeseed oil, functioning as a co-emulsifier, thickening agent, and foam stabilizer. It facilitates effective cleansing while imparting moisturizing benefits and enhancing the overall feel of skin and hair.

Summary

Surfactant Emulsifying Viscosity controlling Foam boosting Cleansing Solubilizer Moisturizing Irritation Reducing

Science

Mechanism of Action

This ingredient operates by reducing surface tension, enabling the efficient removal of dirt and debris for a thorough cleansing action. As a co-emulsifier, it significantly stabilizes oil-in-water emulsions, thereby improving product consistency. It also effectively boosts and stabilizes foam in various formulations, including those containing strong surfactants. Beyond its cleansing capabilities, PEG-4 Rapeseedamide offers a re-fatting effect and moisturizing properties, contributing to softer, more hydrated skin. Notably, it also helps to reduce the potential irritation associated with ether sulfate-containing formulations and enhances product spreadability.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

5%

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

The liquid presentation of PEG-4 Rapeseedamide simplifies handling, storage, transport, and dosing during formulation. Its liquid state allows for incorporation without the need for heating, which is beneficial for temperature-sensitive ingredients. The ingredient maintains stability for up to two years when adequately preserved.

Synergies

  • Reduces the irritation profile of ether sulfate-containing formulations.

Conflicts

  • Not recommended for use on skin affected by fungal acne (malassezia folliculitis) as it may promote yeast growth.

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
5%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that PEG-4 Rapeseedamide is safe for cosmetic application when formulated to be non-irritating and under specific qualifications. While generally well-tolerated, potential side effects such as skin irritation, allergic reactions, or contact dermatitis are relatively uncommon. It can be incorporated into cosmetic and personal care products at concentrations up to 5%. Formulators are advised to consider that some PEGs can enhance the penetration of other ingredients, particularly when combining it with components whose safety is dependent on limited dermal absorption. The U.S. Food and Drug Administration (FDA) has also designated PEG-4 Rapeseedamide as safe for general or specific, limited use in food.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PEG-4 Rapeseedamide is a valuable multi-functional surfactant that enhances cleansing formulations by stabilizing emulsions, boosting foam, providing moisturizing benefits, and reducing irritation, though its use should be avoided on skin affected by fungal acne.

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