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PEG-80 SORBITAN PALMITATE.

Valuable CAS 9005-66-7 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

PEG-80 Sorbitan Palmitate is a polyoxyethylenated sorbitan ester that serves multiple functions in cosmetic formulations, primarily acting as a surfactant and emulsifier. It efficiently reduces surface tension, aids in the uniform distribution of products, and stabilizes oil-in-water emulsions.

Summary

Emulsifying Surfactant Cleansing Solubilizing Emollient (potential)

Science

Mechanism of Action

This ingredient functions by significantly lowering the surface tension of a formulation, which facilitates the even spread of the product on the skin. As an emulsifying agent, it creates and maintains stable mixtures of otherwise immiscible liquids, such as oil and water. It also possesses solubilizing capabilities, helping to integrate other ingredients into a solution. Additionally, it acts as a cleansing agent, effectively removing accumulated dirt and oils from the skin. Based on a closely related derivative, PEG-80 Sorbitan Laurate, it may also contribute emollient properties, helping to moisturize and soften the skin.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 6 – 7
0 7 14

Stability

The optimal pH range for PEG-80 Sorbitan Palmitate is estimated to be between 6.0 and 7.0, based on data from the similar PEG-80 Sorbitan Laurate. Polyethylene glycols and their derivatives are generally well-tolerated by the skin and do not typically exhibit microbiological sensitivity, often negating the need for additional preservatives. However, incorporating excessive amounts may lead to product instability or potential skin irritation, thus stability testing is recommended. It exhibits compatibility with both anionic and cationic surfactants.

Synergies

  • Anionic surfactants
  • Cationic surfactants

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
25%
Sensitization risk Moderate

The Cosmetic Ingredient Review (CIR) Expert Panel has deemed PEG-80 Sorbitan Palmitate safe for cosmetic use at concentrations up to 25%, with the critical restriction that it should not be applied to damaged or compromised skin. Manufacturers must ensure that trace amounts of 1,4-dioxane, a potential by-product of the ethoxylation process, are meticulously controlled through purification. The Environmental Working Group (EWG) assesses this ingredient as having 'MODERATE Allergies & Immunotoxicity,' noting 'Human skin toxicant or allergen - strong evidence' based on CIR data. It is listed by the FDA as safe for general or specific, limited use in food.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A valuable multi-functional ingredient, PEG-80 Sorbitan Palmitate offers effective emulsifying, cleansing, and solubilizing properties, though its use should strictly adhere to a maximum 25% concentration and avoid application on damaged skin.

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