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

NONYL NONOXYNOL-5.

Avoid CAS 9014-93-1 / SURFACTANT - EMULSIFYING

Nonyl Nonoxynol-5 is a synthetic surfactant utilized for its ability to reduce surface tension within formulations. It functions to create stable emulsions, solubilize challenging ingredients, and effectively enhance or stabilize foam.

Summary

surfactant emulsifying solubilizing foam booster

Science

Mechanism of Action

Nonoxynol-5 operates by acting as a surfactant, effectively lowering the interfacial tension between different phases in a formulation. This property enables the creation and stabilization of emulsions, allows for the dissolution of otherwise insoluble components, and can enhance the volume or stability of foam.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

The ingredient is chemically stable under normal conditions.

Conflicts

  • strong acid
  • oxidizing agents

Safety

Safety Profile

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

The Cosmetic Ingredient Review (CIR) Expert Panel concluded Nonoxynol-5 is safe for use in rinse-off products and at concentrations of 5% or less in leave-on products. However, Nonoxynols are banned for use in cosmetics and personal care products marketed in the European Union due to regulatory concerns. Nonoxynol-5 and -6 have been shown to produce severe ocular and skin irritation, although they are not sensitizers. Strict avoidance of products containing this ingredient near the eye area is advised due to its severe ocular irritation potential.

Your Skin

Skin Compatibility

No Normal
No Dry
No Oily
No Sensitive
Irritancy High
Comedogenicity Unknown

Our Assessment

Verdict

Avoid

Despite some allowable use by CIR, Nonyl Nonoxynol-5 presents significant irritation risks, especially for sensitive areas, and is prohibited in the EU, rendering it unsuitable for precision skincare formulations.

Related

Similar Ingredients

Finding similar ingredients…