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C12-13 PARETH-7.

Valuable CAS 66455-14-9 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

C12-13 Pareth-7 is a nonionic surfactant that serves as both a gentle cleansing agent and emulsion stabilizer in skincare formulations. This ethoxylated alcohol derivative effectively removes dirt and sebum while maintaining product texture and stability across diverse skin types.

surfactant/cleansing emulsifying

Science

Functions by reducing interfacial tension between oil and water phases, enabling effective emulsification of sebum and impurities for easy removal while simultaneously stabilizing product formulations and enhancing spreadability


Research

Medium confidence
Effective range 1–15%
Optimal

N/A

Key findings

  1. 01 Human Repeat Insult Patch Testing at 1-15% concentrations demonstrated non-sensitizing properties with mild irritation potential (CIR Expert Panel, 2012)

Transparency

Not commonly dusted

As a functional surfactant and emulsifier, this ingredient serves essential formulation purposes rather than being used for marketing appeal


The Formula

Solubility
Both
Optimal pH 3 – 10
0 7 14

Stability

Exhibits exceptional chemical stability across pH range 3-10, with native pH of 7.5-8.5. Fully miscible in water and dispersible in oils and isopropanol.

Conflicts

  • Strong oxidizing agents

Safety

CIR Status
Safe as used
Max tested
15%
Sensitization risk Low

FDA recommends monitoring for 1,4-dioxane and ethylene oxide impurities, with vacuum stripping to maintain 1,4-dioxane levels below 1 ppm in final products


Your Skin

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

Our Assessment

Valuable

A versatile, well-tolerated surfactant that effectively balances cleansing efficacy with gentleness across all skin types.


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