Science
Mechanism of Action
On the skin, LANETH-40 functions by forming a continuous, protective film across the epidermal surface. In hair applications, its mechanism extends to modifying the hair's chemical structure for styling purposes, such as waving or straightening, while simultaneously offering robust thermal protection against heat damage.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This polymer exhibits stability across a broad pH range of 4.0 to 9.0. While extreme pH conditions outside this range could potentially lead to hydrolysis of its molecular linkages, significant degradation is not anticipated under typical cosmetic formulation parameters.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel concluded that LANETH-40, categorized as an alkyl PEG ether, is safe for use within current cosmetic practices when formulated to be non-irritating. While safety data sheets for the raw material indicate potential for irritation to skin, eyes, or mucous membranes in concentrated forms, it is generally considered non-irritating when properly incorporated into cosmetic products. It is also classified as a 'Polymer of Low Concern' by NICNAS in Australia.
Your Skin
Skin Compatibility
Our Assessment
Verdict
LANETH-40 is an optional ingredient for skincare formulations, offering film-forming benefits, but its primary clinical evidence and functional roles are predominantly centered around hair conditioning and protection.
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