Science
Mechanism of Action
This low-HLB copolymer functions by reducing interfacial tension between the water and silicone/oil phases. Its cetyl group anchors into the oil phase for superior compatibility, while the PEG/PPG segments stabilize water droplets, resulting in a resilient emulsion that offers both skin conditioning and a protective barrier effect.
Research
Clinical Evidence
High confidence3.5%
Key findings
- 01 Clinical patch testing at 40% concentration demonstrated the ingredient is a non-primary irritant with minimal reactive potential.
- 02 Safety evaluations using undiluted (100%) concentrations showed zero signs of primary irritation or sensitization in human volunteers.
- 03 Technical data identifies the 1.5% to 3.5% range as the ideal threshold for maintaining emulsion stability and a lightweight sensory profile.
Transparency
Dusting Analysis
As a functional emulsifier rather than a marketing-led active, it is rarely 'dusted.' However, concentrations below 1.5% may indicate insufficient levels to maintain emulsion integrity in complex formulas.
The Formula
Formulation
Stability
Highly thermally stable up to 130°C and suitable for cold processing. Long-term structural integrity requires the addition of electrolytes like Sodium Chloride or Magnesium Sulfate in the water phase.
Synergies
- Electrolytes (0.5-2.0%)
- Cyclopentasiloxane
- Dimethicone
Conflicts
- High concentrations of strongly ionic surfactants
- Highly polar vegetable oils when used as the primary lipid phase
Safety
Safety Profile
Extremely low irritation profile; however, precautions regarding particle size are recommended when used in aerosolized applications.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An essential formulation tool for creating elegant, stable, and non-reactive emulsions suitable for all skin types, including sensitive profiles.
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References
Sources