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PEG-5 RAPESEED STEROL.

Valuable CAS - / CLEANSING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

PEG-5 Rapeseed Sterol is a versatile ingredient designed to enhance skin hydration and smoothness by reinforcing the lipid barrier. It functions as an effective emulsifier, stabilizing formulations, and aids in the gentle cleansing of the skin, making it a valuable addition to precision skincare.

Summary

Emollient Emulsifying Surfactant/Cleansing

Science

Mechanism of Action

This ingredient forms a protective barrier on the skin's surface, which significantly aids in moisture retention and contributes to a smoother complexion. It actively fortifies the skin's natural lipid barrier, thereby shielding it from environmental stressors and preventing trans-epidermal water loss, which is crucial for maintaining skin elasticity and a youthful appearance. Due to its unique structure, featuring a water-loving PEG component and an oil-loving rapeseed sterol component, it functions as an excellent emulsifier, enabling the formation of stable oil-in-water mixtures in cosmetic formulations. This emulsifying capability also allows it to act as a cleansing agent, facilitating the suspension and rinsing away of dirt particles. Additionally, it may improve the penetration of other active ingredients into the skin.

Research

Clinical Evidence

Medium confidence
Effective range 0.75–2%
Optimal

N/A

Key findings

  1. 01 Clinical observations on related ingredients, specifically PEG-5 Soy Sterol, demonstrated no instances of dermal or ocular irritation, dermal sensitization, or photosensitization when incorporated into formulations at concentrations up to 2%.
  2. 02 A separate study involving PEG-5 Soy Sterol at 0.75% and PEG-25 Soy Sterol at 1.5% confirmed no increase in comedone formation, irritation, or allergic reactions in a formulation tested for comedogenicity and sensitization.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

Polyethylene glycols and their derivatives are widely utilized in cosmetics due to their broad spectrum of viscosity and solubility properties. Generally, as the molar mass of polyethylene glycols increases, their water solubility and hygroscopicity tend to decrease.

Synergies

  • Enhances penetration of active ingredients

Safety

Safety Profile

CIR Status
Safe as used
Max tested
2%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel concluded in 2004 that related PEGs Soy Sterol ingredients, including PEG-5 Soy Sterol, are safe for use in cosmetic products. The maximum reported concentration for PEG-5 Soy Sterol in leave-on products was 2%. European regulatory authorities also recognize this ingredient as safe for cosmetic application. However, it is crucial to employ appropriate purification procedures to ensure the removal of potential 1,4-dioxane and unreacted ethylene oxide residues from PEGs prior to formulation. Furthermore, it is advised against using PEGs Soy Sterol ingredients on compromised or damaged skin, due to a theoretical risk of systemic toxicity and sensitization under such conditions.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PEG-5 Rapeseed Sterol is a valuable ingredient that effectively enhances skin hydration, supports barrier function, and acts as a crucial emulsifier for stable and aesthetically pleasing cosmetic formulations across all skin types.

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