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DISODIUM LAURETH-7 CITRATE.

Valuable / CLEANSING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

Disodium Laureth-7 Citrate is a gentle, multi-functional ingredient acting as a surfactant and emulsifier. It efficiently cleanses skin by removing impurities while actively supporting the skin's natural moisture barrier, ensuring a mild and hydrating experience suitable for all skin types.

Summary

Cleansing Surfactant Emulsifying Conditioning Chelating

Science

Mechanism of Action

Derived from ethoxylated lauryl alcohol and citric acid, Disodium Laureth-7 Citrate primarily functions as a surfactant, effectively reducing surface tension to enable thorough removal of dirt, oil, and impurities from the skin and hair without compromising natural moisture. This action is crucial for maintaining the stratum corneum's integrity and promoting skin hydration, thereby minimizing transepidermal water loss. Its emulsifying properties facilitate the stable binding of water and oil components, creating uniform and stable cosmetic formulations. Additionally, it helps to mitigate irritation often associated with harsher cleansing agents, contributes to a gentle cleansing sensation, and can serve as a conditioning agent for skin and hair while potentially acting as a chelating agent to enhance formula stability.

Research

Clinical Evidence

High confidence
Effective range 1.5–3%
Optimal

N/A

Key findings

  1. 01 An in vitro eye irritation study showed that Disodium Laureth-7 Citrate at a 5% concentration resulted in none to slight eye irritation potential.
  2. 02 A comprehensive human repeated insult patch test conducted at a 10% concentration demonstrated no signs of irritation or sensitization, indicating high skin tolerance.
  3. 03 When utilized within a 1.5-3.0% concentration range in formulations such as shampoos and body washes, it is recommended for its ability to balance effective cleansing with moisturizing benefits and has successfully passed ISO 10993-10 irritation tests, confirming its mildness profile.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 4 – 7
0 7 14

Stability

This ingredient exhibits robust viscosity stability and resistance to dilution-induced thinning. It maintains optimal performance and stability when formulated within a pH range of 4.0 to 7.0, ensuring product integrity under normal use conditions.

Synergies

  • Enhances the mildness of formulations by reducing irritation potential of harsher cleansing agents.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
10%
Sensitization risk Low

Although Disodium Laureth-7 Citrate was removed from a specific CIR safety assessment for citric acid and its esters in 2011, the broader category of citric acid and alkyl citrate esters, inclusive of Laureth-7 Citrate, has been concluded by the CIR Expert Panel to be 'safe in the present practices of use and concentration'. Human repeated insult patch tests at 10% concentration confirm no irritation or sensitization. A general caution for ethoxylated ingredients like this involves potential trace contamination with 1,4-dioxane and ethylene oxide, though this is not a specific safety concern for the ingredient itself but a manufacturing consideration.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Disodium Laureth-7 Citrate is a valuable, gentle ingredient, offering effective cleansing and emulsifying properties while supporting the skin's moisture barrier and enhancing overall formula mildness and stability.

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