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CETETH-10 PHOSPHATE.

Valuable CAS 50643-20-4 / CLEANSING, SURFACTANT - CLEANSING

A sophisticated anionic emulsifier and surfactant engineered to create biomimetic liquid crystal structures within skincare formulas. It bridges the gap between oil and water phases while enhancing the skin's reception to active ingredients through its unique thixotropic properties.

Emulsifying Surfactant Penetration Enhancer Texture Modifier

Science

It organizes into lamellar liquid crystal structures known as oleosomes, which closely mirror the architecture of the skin's natural lipid bilayer. This mimicry provides 'substantivity,' allowing the formula to remain on the skin effectively while acting as a penetration enhancer that facilitates the controlled release of both oil- and water-soluble actives.


Research

High confidence
Effective range 1–8%
Optimal

5%

Key findings

  1. 01 Demonstrated ability to form stable thixotropic structures at 5-8% concentrations, significantly improving the bioavailability of localized pharmaceutical actives.
  2. 02 Proven physical and chemical stability in high-solvent environments (up to 25% organic load) across a wide pH spectrum.

Transparency

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

As a primary emulsifying agent rather than a headline active, it is rarely 'dusted' for marketing purposes; however, concentrations below 1% may indicate it is being used merely as a co-emulsifier rather than for its liquid-crystal penetration-enhancing benefits.


The Formula

Solubility
Both
Optimal pH 3.5 – 9
0 7 14

Stability

Extremely pH-resilient and thixotropic, meaning it thins under pressure (application) for easy spreading but maintains integrity in the bottle. Requires high-shear processing at 80-90°C.

Synergies

  • Roflumilast
  • Organic UV filters
  • High-load organic solvents

Conflicts

  • Cationic surfactants
  • Cationic polymers
  • Polyquaterniums

Safety

CIR Status
Safe as used
Max tested
8.3%
Pregnancy
Safe
Sensitization risk Low

The CIR Expert Panel considers it safe when formulated to minimize irritation; it is well-tolerated even in sensitive areas like the lash line.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

An exceptional functional ingredient that enhances the delivery and stability of complex formulas by mimicking the skin's natural barrier.


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References