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SODIUM COCETH SULFATE.

Valuable / CLEANSING, FOAMING, SURFACTANT - CLEANSING

Sodium Coceth Sulfate is an anionic surfactant, sustainably derived from coconut oil, engineered to meticulously cleanse skin by attracting and emulsifying impurities. It effectively creates a rich lather, facilitating the removal of dirt, oil, and makeup. This ingredient also supports the formulation's overall stability and texture.

Summary

cleansing foaming surfactant emulsifying

Science

Mechanism of Action

As an anionic surfactant derived from coconut oil, Sodium Coceth Sulfate operates by forming micelles that encapsulate and lift away dirt, oil, and makeup from the skin's surface. This mechanism allows water to effectively mix with and rinse away lipophilic impurities. Furthermore, it enhances lather production and stability, even in hard water, and functions as an emulsifying agent to maintain product consistency.

Research

Clinical Evidence

Medium confidence
Effective range ≤0.8%
Optimal

N/A

Key findings

  1. 01 Integrated into rinse-off formulations (e.g., shampoos, body washes, facial cleansers) at concentrations up to 0.8% for effective cleansing, foaming, and emulsification.
  2. 02 Utilized in leave-on products (e.g., body and hand lotions) at concentrations of 0.2% for its cleansing, foaming, and emulsifying attributes.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 9 – 9.5
0 7 14

Stability

This ingredient maintains optimal stability and performance within a narrow pH range of 9.0 to 9.5, typically observed in a 10% aqueous solution. It exhibits excellent solubility in polar solvents such as water, ethanol, and propylene glycol, but is insoluble in non-polar solvents like mineral oil.

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
0.2%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel deems Sodium Coceth Sulfate safe for cosmetic applications, provided it is formulated to be non-irritating. Maximum concentrations are specified as 0.8% for rinse-off products and 0.2% for leave-on products. While trace levels of 1,4-dioxane, a manufacturing byproduct, may be present, the FDA has determined these levels in cosmetics pose no consumer hazard.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Sodium Coceth Sulfate is a valuable, mild anionic surfactant offering effective cleansing and foaming properties for a wide range of skincare and haircare applications when formulated within recommended concentrations.

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