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OLETH-5.

Valuable CAS 9004-98-2 / SURFACTANT - EMULSIFYING

Oleth-5 is an ethoxylated fatty alcohol frequently incorporated into cosmetic formulations. It functions primarily as an emulsifier, surfactant, and solubilizer, critical for blending immiscible phases and enhancing product characteristics.

Emulsifying Surfactant Solubilizer

Science

Oleth-5 operates by reducing the surface tension at the interface of oil and water, thereby stabilizing emulsions and facilitating the homogeneous dispersion of oil-soluble ingredients within water-based systems. Its surfactant properties also promote foaming and contribute to effective cleansing by aiding the removal of oil and dirt from skin and hair.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Both
Optimal pH 5 – 7
0 7 14

Stability

Oleth-5 demonstrates robust stability, enhancing emulsion integrity across varied temperatures and proving compatible with oxidizing, reducing environments, and hard water conditions.

Conflicts

  • High pH environments, which can induce hydrolytic degradation.

Safety

CIR Status
Safe as used
Sensitization risk Moderate

The CIR Expert Panel concludes Oleth ingredients, including Oleth-5, are safe when used in current practices and concentrations, provided formulations are non-irritating. However, potential for mild to moderate eye and skin irritation has been observed. It should not be applied to compromised skin and may increase the penetration of other ingredients. Manufacturers must ensure purification steps control trace amounts of 1,4-dioxane.


Your Skin

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

Our Assessment

Valuable

Oleth-5 is a valuable formulating agent due to its versatile emulsifying and surfactant properties, but its potential for irritation necessitates careful formulation, especially for sensitive skin types.


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