Get a Free 5ml Mini Now Free 5ml Mini With Every Order of The Mantle

C11-15 PARETH-12 STEARATE.

Valuable CAS 68891-25-8 / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

A versatile nonionic surfactant that combines emulsification properties with gentle skin conditioning benefits. This ethoxylated alcohol ester provides dual functionality as both an emulsion stabilizer and occlusive emollient that enhances skin softness while reducing transepidermal water loss.

emollient surfactant emulsifying skin conditioning

Science

Functions through its amphiphilic structure, with hydrophilic PEG-12 chains and lipophilic C11-15 alkyl and stearate regions that reduce oil-water interfacial tension for emulsion stability. Forms a protective film on skin that prevents moisture evaporation, increases stratum corneum hydration, and delivers conditioning effects.


Research

Medium confidence
Effective range 0.5–15%
Optimal

3%

Key findings

  1. 01 Human use testing in antibacterial formulations at 0.5-3% demonstrated improved skin feel and conditioning versus control formulas
  2. 02 NICNAS evaluation at 5-15% showed non-irritating properties and ability to reduce harsh surfactant irritation

Transparency

Not commonly dusted

As a functional surfactant and emulsifier, this ingredient serves essential formulation purposes rather than marketing claims, making dusting unlikely.


The Formula

Solubility
Both
Optimal pH 5 – 8
0 7 14

Stability

Demonstrates excellent thermal stability across wide temperature ranges and resists hydrolysis. Provides viscosity stabilization in foaming systems.

Synergies

  • Other nonionic surfactants
  • Emollients
  • Conditioning agents

Conflicts

  • Strong oxidizing agents
  • Phenolic preservatives (parabens) due to polyoxyethylene chain complexation

Safety

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

Evaluated under CIR PEG Stearates and Alkyl PEG Ethers assessments. Panel concluded safety at current use concentrations when formulated to minimize irritation.


Your Skin

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

Our Assessment

Valuable

A well-tolerated multifunctional ingredient that effectively combines emulsification with gentle skin conditioning across all skin types.


Related

Finding similar ingredients…