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PEG-16 CETYL/OLEYL/STEARYL/LANOLIN ALCOHOL ETHER.

Valuable / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

PEG-16 CETYL/OLEYL/STEARYL/LANOLIN ALCOHOL ETHER is a versatile lanolin-derived ingredient functioning as an emulsifier, humectant, and conditioning agent. It enhances emulsion stability and provides significant moisturizing benefits by forming a semi-occlusive film, making it particularly beneficial for dry and sensitive skin types.

Summary

emulsifying surfactant cleansing humectant skin conditioning

Science

Mechanism of Action

This polyether lanolin derivative acts primarily as a surfactant and emulsifying agent, effectively reducing the interfacial tension between immiscible phases like oil and water to stabilize formulations. As a cleansing agent, it aids in impurity removal by lowering the surface tension of the stratum corneum. Furthermore, it functions as a humectant and a mild conditioning agent, improving skin's moisture balance and contributing to epidermal softening by creating a moisture-retaining, semi-occlusive film.

Research

Clinical Evidence

Low confidence
Effective range 0.001–15%
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

This ingredient is water-soluble and generally well tolerated by the skin. Polyethylene glycols are not typically microbiologically sensitive, often reducing the need for additional preservatives. Lanolin components within this ingredient are noted for their pH stability, including in demanding applications like hair bleaching.

Safety

Safety Profile

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

The Cosmetic Ingredient Review (CIR) Expert Panel has deemed polyether lanolins, including PEG-16 Lanolin, safe for cosmetic use when formulated to be non-irritating. Previous assessments showed them to be non-toxic in acute oral, dermal, and inhalation studies, and caused minimal ocular irritation at concentrations up to 100%. In human trials, they were found non-irritating and non-sensitizing at concentrations up to 60%. However, regulatory concerns exist regarding potential residues of ethylene oxide and 1,4-dioxane from the ethoxylation process, which are considered carcinogenic, emphasizing that safety relies on compound purity. Lower molecular weight PEGs may exhibit increased absorption through compromised skin barriers.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

PEG-16 CETYL/OLEYL/STEARYL/LANOLIN ALCOHOL ETHER is a valuable multifunctional ingredient, offering emulsifying, cleansing, and significant conditioning benefits, especially for dry and sensitive skin, with a favorable safety profile when formulated appropriately.

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