Description

Laureth-4 Carboxylic Acid is a fatty acid derived from the esterification of Laureth-4, an ethoxylated alcohol, with a carboxylic acid. It is primarily used in cosmetic and personal care products as an emulsifying and thickening agent. This ingredient helps improve the texture and stability of formulations.

Chemical Composition and Structure:

Components:
Fatty Acids: Derived from the esterification of Laureth-4.
Ethoxylated Alcohol: Laureth-4, an alcohol with an ethylene oxide chain.
Structure:
Molecules: Laureth-4 Carboxylic Acid consists of a long-chain structure that includes a carboxyl group (-COOH) and a laureth group, which is an ethoxide chain. The structure allows for hydrogen bonding and contributes to its emulsifying and thickening capabilities.

Physical Properties:

Appearance: Typically a viscous liquid or paste.
Odor: Generally odorless or has a very faint odor.
Solubility: Soluble in water and organic solvents.
pH: Usually slightly acidic.

Production Process:

Esterification: Laureth-4 is esterified with a carboxylic acid to produce Laureth-4 Carboxylic Acid.
Purification: The product is purified to remove any impurities and concentrated if necessary.
Formulation: Incorporated into cosmetic formulations as an emulsifier or thickener to improve texture and stability.

Applications:

Skin Care: Used in creams and lotions to enhance texture and emulsification of components.
Hair Care: Found in shampoos and conditioners to improve product texture and distribution.
Cosmetics: Used in foundations, primers, and other cosmetics to provide a smooth, stable texture.

Environmental and Safety Considerations:

Environmental Impact: Acids like Laureth-4 Carboxylic Acid can have environmental impacts if not disposed of properly. Proper production and disposal practices should be considered.
Safety: This ingredient is generally considered safe for use in cosmetics and personal care products when used as directed. Individuals allergic to plants or with very sensitive skin should be cautious.

INCI:


Surfactant - Cleansing agent. Cosmetic products used to cleanse the skin utilise the surface-active action that produces a lowering of the surface tension of the stratum corneum, facilitating the removal of dirt and impurities.
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