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C12-16 PARETH-9.

Valuable CAS 68551-12-2 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

A high-performance non-ionic surfactant and emulsifying agent derived from fatty alcohols and ethylene oxide. It serves as a vital structural component in skincare, ensuring that oil-based and water-based ingredients remain perfectly blended for consistent product performance.

emulsifying cleansing surfactant solubilizing

Science

By lowering the surface tension between disparate phases, it facilitates the formation of stable emulsions and allows for the solubilization of fragrances and actives. Its molecular structure forms micelles that encapsulate and gently lift away lipids and environmental debris during the cleansing process.


Research

High confidence
Effective range 0.1–10%
Optimal

5%

Key findings

  1. 01 A 119-day safety assessment on aqueous solutions up to 25% concentration demonstrated no significant irritation, though flaking occurred at levels exceeding 10%, highlighting the importance of precise concentration control.

Transparency

Not commonly dusted
Min. effective
0.1%
Red flag below
0.05%

As a functional surfactant rather than an active treatment, this ingredient is rarely 'dusted'; however, its presence at levels below 0.1% may indicate it is being used solely as a solubilizer for fragrance rather than for its emulsifying properties.


The Formula

Solubility
Water
Optimal pH 4 – 9
0 7 14

Stability

Exhibits exceptional stability across various pH levels and is notably resistant to electrolytes and hard water. It integrates seamlessly with anionic and cationic systems.

Synergies

  • Anionic surfactants
  • Cationic conditioners
  • Essential oils

Conflicts

  • Strong oxidizing agents
  • pH environments below 3.0

Safety

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

Safe for use in rinse-off and leave-on products when formulated to be non-irritating; typical leave-on concentrations are strategically kept below 5%.


Your Skin

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

Our Assessment

Valuable

A reliable and skin-friendly stabilizer essential for maintaining the structural integrity and sensory profile of precision formulations.


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References