C11-15 Pareth-7 is a non-ionic surfactant and emulsifier derived from C11-C15 linear fatty alcohols ethoxylated with an average of 7 moles of ethylene oxide. It provides excellent wetting, dispersing, and emulsifying properties with moderate foaming and low irritation potential. This clear to pale yellow viscous liquid is commonly used in facial cleansers, micellar waters, body washes, shampoos, makeup removers, and light emulsions. It delivers effective yet gentle cleansing, good solubilization of oils/fragrances, and a soft, non-stripping after-feel.
Products with C11-15 PARETH-7
With samples available
Silsoft™ 253 emulsion
by Momentive Performance Materials
- Sustainable option
- Support available
- Original documents
BELSIL® ADM 8105 E
by Brenntag Beauty & Personal Care
- Sustainable option
- Support available
- Original documents
Microsil® AF-M30
by Innospec
What is C11-15 PARETH-7 used for?
- Surfactant / Cleansing: Gently removes dirt, oil, makeup, and impurities. Frequently used in facial cleansers, micellar waters, and body washes for mild, non-drying cleansing.
- Emulsifying / Solubilizing: Dissolves and emulsifies oils, fragrances, and lipophilic actives in aqueous systems. Ideal for transparent toners, makeup removers, and light emulsions requiring clarity and stability.
- Foam booster / Texture enhancer: Contributes to creamy foam and improves spreadability. Common in shampoos, shower gels, and cleansers for luxurious lather and smooth rinse-off.
Origin
C11-15 Pareth-7 is produced synthetically by ethoxylation of C11-C15 linear fatty alcohols (derived from petroleum or vegetable sources via oxo process or hydrogenation) with 7 moles of ethylene oxide in the presence of a catalyst (e.g., KOH). The fatty alcohol base can be petrochemical or renewable, while the PEG chain is petrochemical. It is supplied as a high-active liquid (often 90-100%) and is biodegradable, making it suitable for many eco-conscious formulations.
What does C11-15 PARETH-7 do in a formulation?
EMULSIFYING|
SURFACTANT|
CLEANSING|
FOAM BOOSTINGSafety Profile
C11-15 Pareth-7 is considered safe for cosmetic use per CIR Expert Panel assessments of ethoxylated fatty alcohols (safe as used when properly purified). It has a low to moderate hazard rating from EWG (typically 1-4) due to potential 1,4-dioxane and ethylene oxide residuals from ethoxylation (minimized in cosmetic grades). It is significantly milder than sulfates, with low eye/skin irritation potential at typical concentrations (1-10%). Well-tolerated across skin types, including sensitive.
C11-15 PARETH-7 alternatives
C11-15 PARETH-7 technical profile
| Property | Values |
| Boiling Point | >200°C |
| Melting Point | <0°C |
| pH | Neutral to slightly acidic |
| Solubility | Highly soluble/dispersible in water |
| Viscosity | Medium |