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DECETH-8.

Valuable CAS 26183-52-8 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

DECETH-8 is a synthetic ethoxylated fatty alcohol, specifically a polyethylene glycol ether derived from decyl alcohol. It serves as a multifunctional ingredient, primarily functioning as an emulsifier, surfactant, and cleansing agent in cosmetic formulations. Its core utility lies in its ability to stabilize mixtures of immiscible liquids and enhance product spreadability and skin cleansing efficacy.

emulsifying surfactant cleansing fragrance functional

Science

DECETH-8 operates by significantly reducing interfacial tension between typically unmixable components, such as oils and water, thereby creating stable emulsions. As a surfactant, it lowers the surface tension of a formulation, promoting uniform application and effectively lifting and removing lipid-based impurities and particulate matter from the skin's surface.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH N/A
0 7 14

Stability

DECETH-8 is readily soluble in water. As an ethoxylated fatty alcohol with 8 ethylene oxide units, it maintains its liquid, water-soluble nature. While a direct optimal pH range for DECETH-8 isn't specified, chemically similar ethoxylated fatty alcohols demonstrate robust stability across a broad pH spectrum, from acidic to alkaline environments. Products containing DECETH-8 have been observed with pH levels between 2.1 and 2.9, indicating its compatibility in acidic formulations.

Conflicts

  • strong acids
  • strong bases
  • strong oxidizing agents
  • strong reducing agents

Safety

CIR Status
Safe as used with restrictions
Sensitization risk Moderate

The Cosmetic Ingredient Review (CIR) Expert Panel has deemed DECETH-8, along with other Deceth ingredients, safe for use in cosmetic products, provided formulations ensure non-irritancy. Improper formulation can lead to skin irritation. A potential concern is the trace presence of 1,4-dioxane, an ethoxylation byproduct, which manufacturers can mitigate through rigorous purification processes. Its use is permitted in the European Union under standard cosmetic regulations.


Your Skin

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

Our Assessment

Valuable

DECETH-8 is a valuable functional ingredient for stable cosmetic formulations, offering effective emulsification and cleansing properties, though precise formulation is crucial to mitigate its moderate irritancy and comedogenicity.


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References