Science
Mechanism of Action
Operating primarily as an emulsifying agent, Sorbitan Palmate reduces the interfacial tension between oil and water phases, allowing them to form stable mixtures. It functions as an auxiliary emulsifier and stabilizer in oil-in-water systems, optimizing product texture and facilitating an even distribution of ingredients on the skin surface. Its molecular structure also suggests potential for supporting the skin's moisture retention.
Research
Clinical Evidence
High confidence1-5%
Key findings
- 01 In a 21-day cumulative irritation test (34 subjects), formulations with 4% sorbitan palmitate were noted to be slightly irritating.
- 02 A Shelanski/Jordan Repeated Insult Patch Test (RIPT) with 206 subjects concluded that a skincare product containing 4% sorbitan palmitate was non-irritating and non-sensitizing.
- 03 Clinical testing showed 30% sorbitan palmitate was neither an irritant nor a sensitizer when applied for up to 5 days, followed by a challenge application.
Transparency
Dusting Analysis
Sorbitan Palmate is a well-established and generally safe cosmetic ingredient, widely utilized within its recommended concentrations of 1-5%. Its fundamental role as an emulsifier and favorable safety profile from extensive testing make it unlikely to be a 'dusted' ingredient, which typically applies to ingredients with questionable efficacy or safety claims at very low concentrations.
The Formula
Formulation
Stability
The ingredient is stable under normal conditions but is susceptible to hydrolysis in the presence of strong acids or strong alkalis.
Conflicts
- strong acids
- strong alkalis
- strong oxidants
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed Sorbitan Palmate's safety for use in cosmetic formulations. It is also registered and considered safe under European Union cosmetic regulations, and sorbitan monopalmitate is listed by the FDA for indirect food additive applications.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Sorbitan Palmate is a valuable, safe, and versatile emulsifying agent, well-tolerated across all skin types, and critical for stabilizing a wide range of cosmetic formulations.
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