Science
Mechanism of Action
By lowering interfacial tension, Ceteth-4 utilizes a dual-ended molecular structure to bind lipophilic debris to its fatty tail while its hydrophilic head anchors to water. This enables the efficient solubilization of surface oils and makeup, ensuring a clean rinse-off without disrupting the lipid mantle.
Research
Clinical Evidence
High confidence0.4%
Key findings
- 01 Concentrations between 0.2% and 0.4% are effectively used in dermatologically tested oil-to-foam cleansers without inducing adverse reactions.
- 02 Testing confirmed that a 3.0% concentration is non-irritating to intact skin, establishing a high safety profile for standard cosmetic applications.
Transparency
Dusting Analysis
Because Ceteth-4 is primarily a functional emulsifier rather than a primary active, it is rarely 'dusted' for marketing purposes. It is typically included at the precise level required to achieve formula stability.
The Formula
Formulation
Stability
Highly resilient across a broad pH spectrum; however, peak stability is achieved within the physiological skin range of pH 5.5 to 7.0. It possesses an HLB value of approximately 9.0.
Synergies
- Lipid-rich emollients
- Essential oils
- Non-ionic co-surfactants
Conflicts
- Strong oxidizing agents
- Formulations susceptible to N-nitroso compound formation
- Extreme acidic environments below pH 3.0
Safety
Safety Profile
Manufacturers must utilize purified grades to ensure the absence of 1,4-dioxane and ethylene oxide by-products. Risk of irritation increases only if applied to abraded or severely damaged skin barriers.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An essential functional component for creating sophisticated, residue-free cleansing experiences and stable multi-phase emulsions.
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References
Sources