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C12-15 PARETH-12.

Valuable CAS 68131-39-5 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

A versatile nonionic emulsifier that creates stable oil-in-water formulations while enhancing product texture and facilitating ingredient delivery. This gentle surfactant excels at binding water and oil phases together, making it particularly valuable in cleansing and moisturizing products where smooth application is essential.

emulsifying surfactant cleansing solubilizing

Science

Functions by reducing interfacial tension between oil and water phases, enabling the formation of stable emulsions with an HLB value of 14.4. Additionally acts as a solubilizer for other ingredients and enhances the water-dispersibility of silicone powders, improving texture and sebum absorption properties.


Research

High confidence
Effective range 0.02–3%
Optimal

3%

Key findings

  1. 01 Human repeat insult patch testing at 5-15% concentration showed no sensitization reactions
  2. 02 Primary irritation index testing at 50% concentration demonstrated minimal dermal irritation potential
  3. 03 VCRP data confirms safe usage range of 0.02-3% in leave-on formulations

Transparency

Not commonly dusted

Not typically used for dusting purposes; legitimate functional ingredient with established safety profile


The Formula

Solubility
Water
Optimal pH 5 – 7
0 7 14

Stability

Demonstrates high stability across both acidic and alkaline conditions, maintaining emulsification properties throughout typical cosmetic pH ranges

Synergies

  • Dimethicone/Vinyl Dimethicone Crosspolymer
  • other nonionic surfactants

Safety

CIR Status
Safe as used
Max tested
3%
Pregnancy
Safe
Sensitization risk Low

CIR Expert Panel approval contingent on minimizing manufacturing impurities like 1,4-dioxane and ethylene oxide. Undiluted form presents eye irritation risk.


Your Skin

Yes Normal
Yes Dry
Yes Oily
No Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

A reliable emulsification workhorse that enables smooth textures and stable formulations with minimal irritation potential.


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