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C12-16 PARETH-7.

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

A high-performance non-ionic surfactant and emulsifier that bridges the gap between effective cleansing and skin comfort. It utilizes a balanced fatty alcohol chain to lift impurities while leaving a smooth, emollient finish on the skin surface.

surfactant cleansing agent emulsifier emollient

Science

This molecule features a dual-natured structure: a lipophilic C12-16 carbon chain and a hydrophilic polyethylene glycol (PEG) segment. By lowering the interfacial tension between oil and water, it emulsifies sebum and debris, allowing them to be rinsed away easily without disrupting the essential skin barrier.


Research

High confidence
Effective range 0.5–5%
Optimal

3%

Key findings

  1. 01 Safety assessments on analogous alkyl PEG ethers demonstrate that concentrations as high as 25% produce only negligible irritation, confirming high skin tolerance.
  2. 02 Clinical retrospective data on related surfactants (Laureth-9) indicate a sensitization rate of less than 2%, classifying the ingredient as generally non-sensitizing at standard formulation levels.

Transparency

Not commonly dusted
Min. effective
0.5%
Red flag below
0.1%

While primarily a functional ingredient rather than a 'hero' active, it must be used at concentrations above 0.5% to provide effective emulsification and cleansing properties.


The Formula

Solubility
Water
Optimal pH 3 – 10
0 7 14

Stability

Highly resilient across a broad pH spectrum and maintains stability in the presence of hard water and electrolytes. It possesses an HLB value of approximately 12.9.

Synergies

  • Lipid-replenishing emollients
  • Other non-ionic surfactants

Conflicts

  • N-nitrosating agents
  • Strong oxidizing agents

Safety

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

Manufacturers must monitor for 1,4-dioxane and ethylene oxide impurities to ensure purity. Formulation should avoid nitrosamine formation.


Your Skin

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

Our Assessment

Valuable

An exceptionally stable and gentle surfactant that provides efficient cleansing with a low risk of irritation or sensitization.


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References