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CETOLETH-2.

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

A high-performance non-ionic surfactant and emollient that bridges the gap between oil and water phases in advanced topical formulas. It is particularly valued for its ability to create rich, stable textures and establish a protective moisture-locking barrier on the skin's surface.

Emulsifying agent Surfactant Skin conditioning Texture enhancer

Science

As a lipophilic emulsifier with a low HLB value (approx. 5.0-5.3), it reduces interfacial tension to stabilize water-in-oil systems or support oil-in-water emulsions. Beyond its structural role, it functions as a skin conditioner by filling gaps between skin cells and providing an occlusive film that significantly mitigates transepidermal water loss.


Research

Medium confidence
Effective range 1–5%
Optimal

3%

Key findings

  1. 01 Clinical assessments on primary components indicate a high safety profile on intact human skin at 3.0%, showing no irritation, though sensitivity can occur if the skin barrier is compromised (abraded).
  2. 02 Technical stability testing confirms its efficacy as a co-emulsifier within the 1.0% to 5.0% range for enhancing product texture and long-term emulsion integrity.

Transparency

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

Because Cetoleth-2 is primarily a functional emulsifier rather than a standalone active, 'dusting' is less common; however, concentrations below 1.0% may be insufficient to provide the emollient barrier benefits advertised in rich creams.


The Formula

Solubility
Oil
Optimal pH 3 – 11
0 7 14

Stability

Exhibits exceptional stability across a broad pH spectrum and remains resilient in electrolyte-rich environments. Its oil-soluble nature makes it a cornerstone for lipid-heavy formulations.

Synergies

  • High HLB surfactants
  • Electrolytes
  • Mineral and vegetable oils

Conflicts

  • Strong oxidizing agents
  • Extended exposure to highly alkaline environments (pH >11)

Safety

CIR Status
Safe as used
Max tested
5%
Pregnancy
Safe
Sensitization risk Low

To ensure purity, Moumoujus standards require vacuum stripping to maintain potential ethoxylation by-products, such as 1,4-dioxane, below 1 ppm.


Your Skin

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

Our Assessment

Valuable

An essential texture-refining agent that provides reliable emulsion stability and emollient benefits for dry and normal skin types.


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