Science
Mechanism of Action
As an amphiphilic molecule, it reduces interfacial tension to create stable emulsions. In cleansing applications, it organizes into micelles that trap lipophilic debris and environmental pollutants, allowing them to be efficiently rinsed away without stripping the lipid barrier.
Research
Clinical Evidence
High confidence5%
Key findings
- 01 A 2012 CIR Assessment published in the International Journal of Toxicology evaluated Cetoleth-25, noting that while concentrations of 15-20% showed slight irritancy in animal models, levels within the 5% threshold are considered non-irritating for human topical application.
Transparency
Dusting Analysis
As a functional emulsifier rather than a bioactive 'hero' ingredient, Cetoleth-25 is rarely used for marketing claims and is typically included at levels necessary for formula stability.
The Formula
Formulation
Stability
Exhibits robust stability across a broad pH spectrum due to its non-ionic nature; it is particularly resistant to acidic and alkaline environments, though prolonged exposure to extreme alkalinity may induce slow hydrolysis.
Conflicts
- Strong oxidizing agents
- Compromised or burnt skin (potential for PEG-related systemic absorption)
Safety
Safety Profile
Safe for general use in leave-on products up to 5%. Caution is advised only on severely damaged skin where the epidermal barrier is absent, to prevent absorption of PEG components.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A reliable and versatile emulsifier that supports formula integrity and gentle cleansing with a low risk of irritation when used under 5%.
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