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CETOLETH-10.

Valuable CAS 68155-01-1 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

Cetoleth-10 is a high-performance non-ionic surfactant and emulsifying agent derived from ethoxylated cetyl and oleyl alcohols. It is primarily utilized to stabilize oil-in-water emulsions, ensuring that complex skincare formulas maintain a consistent, uniform texture without separation.

Surfactant Emulsifying Agent Solubilizer Wetting Agent

Science

It functions by lowering the interfacial tension between aqueous and lipid phases, facilitating the formation of stable microscopic droplets. Additionally, its molecular structure allows it to act as a wetting agent for pigments and a solubilizer for delicate fragrances, ensuring even distribution of ingredients across the skin surface.


Research

High confidence
Effective range 1–10%
Optimal

5%

Key findings

  1. 01 Safety assessments indicate that while pure concentrations can cause irritation in animal models, cosmetic dilutions between 1% and 10% are clinically non-irritating.
  2. 02 Technical evaluations by manufacturers confirm its efficacy in pigment wetting and emulsification without disrupting the cutaneous barrier at standard usage levels.

Transparency

Not commonly dusted
Min. effective
1%
Red flag below
0.5%

As a functional emulsifier rather than an active treatment, 'dusting' is less of a concern; however, concentrations below 1% may indicate it is being used merely as a fragrance solubilizer rather than a primary structural emulsifier.


The Formula

Solubility
Both
Optimal pH 4.5 – 9
0 7 14

Stability

Highly resilient across a broad pH spectrum and maintains structural integrity in electrolyte-rich environments. Features an HLB value of approximately 12.2–12.5.

Synergies

  • Fragrance oils
  • Mineral pigments
  • Electrolytes

Conflicts

  • Strong oxidizing agents
  • High concentrations of phenolic compounds
  • Extreme pH environments when paired with anionic surfactants

Safety

CIR Status
Safe as used
Max tested
10%
Pregnancy
Safe
Sensitization risk Low

Safe for cosmetic application provided the formulation is processed to limit 1,4-dioxane and ethylene oxide impurities to below 1 ppm.


Your Skin

Yes Normal
Yes Dry
Yes Oily
No Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

A versatile and stable emulsifier essential for creating sophisticated, elegant textures in multi-phase skincare systems.


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References