Science
Mechanism of Action
As a non-ionic surfactant with a low HLB value, it anchors into the oil phase of an emulsion to reduce interfacial tension, facilitating the creation of stable gelling networks. Its long behenyl carbon chain acts as an occlusive agent, forming a breathable film that inhibits transepidermal water loss (TEWL) without a greasy residue.
Research
Clinical Evidence
High confidence2%
Key findings
- 01 Extensive safety assessments published in the International Journal of Toxicology confirm that alkyl PEG ethers like Beheneth-5 are non-sensitizing in human repeat insult patch tests (HRIPT) and exhibit minimal to no irritation across a wide concentration range.
Transparency
Dusting Analysis
Because Beheneth-5 serves a functional role in emulsion stability and texture, concentrations below 0.5% in oil-heavy formulas may indicate it is being used for label claims rather than structural integrity.
The Formula
Formulation
Stability
Exhibits exceptional chemical stability due to its ether-linked structure, which resists hydrolysis in both highly acidic and alkaline environments.
Synergies
- High HLB emulsifiers
- Oil-soluble vitamins
- Vegetable waxes
Conflicts
- Strong oxidizing agents
- High concentrations of parabens (potential micellar sequestration)
Safety
Safety Profile
The CIR Expert Panel supports its safety when formulated to be non-irritating; it is a standard industry component with a long history of safe application.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A reliable, pH-versatile co-emulsifier that provides essential structural integrity and skin-softening benefits to precision skincare formulations.
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References
Sources