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Moumoujus

LANETH-75.

Valuable CAS 61791-20-6 / CLEANSING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

LANETH-75 is a highly ethoxylated derivative of lanolin, primarily functioning as a nonionic surfactant to blend immiscible liquids, such as oil and water, into stable emulsions. It also contributes to skin hydration and softness by acting as an emollient and forming a protective barrier. Its versatile properties allow for broad application in cosmetic and personal care formulations.

Summary

Emulsifying Surfactant Cleansing Solubilizing Wetting Emollient Moisturizing Clarifying

Science

Mechanism of Action

LANETH-75 operates as a nonionic surfactant, leveraging its amphiphilic molecular structure to significantly reduce the surface tension between differing liquid phases. This enables the effective emulsification of immiscible substances like oils and aqueous solutions, creating stable and homogeneous formulations. Beyond its surfactant capabilities, it acts as an emollient and moisturizing agent, enhancing skin hydration and pliability by forming a protective surface barrier that minimizes trans-epidermal water loss.

Research

Clinical Evidence

Medium confidence
Effective range 0.5–20%
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 2 – 10
0 7 14

Stability

LANETH-75 demonstrates robust stability across a wide pH range of 2.0 to 10.0. Its ethoxylated nature ensures complete water solubility, yielding clear solutions even in aqueous ethanol concentrations up to 40%. As a nonionic compound, it exhibits excellent compatibility with most other solubilizers, including electrolyte solutions at concentrations up to 10%. It is minimally affected by oxidative and reducing agents; however, maintaining product integrity requires storage in cool, dry, well-ventilated conditions within tightly sealed containers.

Synergies

  • Other solubilizers
  • Electrolyte solutions (up to 10%)

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
20%
Sensitization risk Moderate

The Cosmetic Ingredient Review (CIR) panel considers LANETH-75 safe for use within specified restrictions, with a maximum recommended concentration of 20.0%. Use levels exceeding this limit may manifest as adverse skin reactions including rashes, itching, and redness. As an ethoxylated compound, there is a theoretical concern regarding the potential presence of residual ethylene oxide and 1,4-dioxane; manufacturers should ensure and declare the purity of the ethoxylated material. Due to its high degree of ethoxylation (75 units), skin penetration is expected to be minimal. A patch test is strongly advised prior to full application, especially for individuals prone to irritation or allergic reactions.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

LANETH-75 is a valuable nonionic surfactant and emollient, effective for stabilizing emulsions and enhancing skin hydration in various formulations, provided it is used within its recommended concentration limits to mitigate potential moderate irritancy and comedogenicity.

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