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Moumoujus

PEG-20 PHYTOSTEROL.

Valuable CAS - / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

PEG-20 Phytosterol is a polyoxyethylenated phytosterol, expertly engineered to combine a water-soluble polyethylene glycol (PEG) chain with oil-soluble phytosterols. This unique structure enables it to act as a dual-action ingredient, functioning as both an effective emulsifier and a beneficial skin humectant.

Summary

Emulsifying Surfactant Humectant Skin Conditioning Solubilizing

Science

Mechanism of Action

This ingredient leverages the distinct properties of its two core components: phytosterols and polyethylene glycol. Phytosterols are recognized for their ability to fortify the skin's lipid barrier, thereby minimizing moisture loss and supporting optimal hydration. They further contribute to skin health by offering antioxidant protection, soothing irritation, and potentially stimulating collagen synthesis. The PEG portion acts as a humectant, drawing and retaining moisture within the skin. In formulation, its amphiphilic nature allows it to serve as a hydrophilic, nonionic surfactant, emulsifier, and solubilizer, facilitating the creation of stable oil-in-water emulsions and desirable liquid crystal structures.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

The ingredient's dual solubility, stemming from its water-soluble PEG and oil-soluble phytosterol components, allows it to effectively integrate and stabilize both oily and aqueous phases within an emulsion. It is noted for its ability to create glossy, low-viscosity emulsions and facilitate the formation of beneficial liquid crystal structures, which can enhance overall formulation stability and sensory characteristics.

Conflicts

  • Not recommended for use on damaged or compromised skin due to documented instances of systemic toxicity and sensitization associated with PEG-based formulations under such conditions.
  • Its petrochemical origin and the ethoxylation process it undergoes render it unsuitable for use in certified organic cosmetic formulations.
  • Requires rigorous purification during manufacturing to ensure the complete removal of potential trace impurities, specifically 1,4-dioxane and ethylene oxide.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
15%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed the safety of 'PEGs Soy Sterol,' which encompasses PEG-20 Phytosterol, for use in cosmetic products up to a maximum reported concentration of 15%. However, it is explicitly advised against application on damaged skin due to observed systemic toxicity and sensitization in burn patients treated with PEG-based creams. Generally, PEG-20 Phytosterol is considered to have low concerns regarding cancer, allergies & immunotoxicity, and developmental & reproductive toxicity, provided that manufacturers ensure the meticulous removal of impurities such as 1,4-dioxane and ethylene oxide generated during its ethoxylation process.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PEG-20 Phytosterol is a valuable, multi-functional ingredient that optimizes formulation stability and supports skin hydration, though its application requires careful consideration regarding skin integrity and product purity.

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