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Moumoujus

LAURETH-8 CARBOXYLIC ACID.

Valuable / CLEANSING

LAURETH-8 CARBOXYLIC ACID is an anionic surfactant primarily functioning as an emulsifier and solubilizer, enabling the stable blend of disparate ingredients like oil and water. Beyond its foundational role in formulation, it also contributes to skin hydration and can enhance the penetration of other active compounds.

Summary

Surfactant Emulsifying Agent Solubilizing Agent Hydrating Agent Penetration Enhancer Irritation Reducer

Science

Mechanism of Action

This ingredient operates by significantly reducing the surface tension between substances, thereby facilitating the uniform dispersion of immiscible liquids, such as oils in water, to create stable emulsions. On the skin, it aids in retaining moisture, indirectly improving hydration. Furthermore, its surfactant properties can improve the permeability of the skin barrier, allowing other active ingredients to penetrate more effectively, and it may also help to mitigate skin irritation.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

LAURETH-8 CARBOXYLIC ACID maintains general stability under standard storage conditions, though exposure to frost, excessive heat, or direct sunlight should be avoided. Related Laureth Carboxylic Acids demonstrate efficacy and stability across a broad pH spectrum, encompassing acidic, neutral, and dilute alkaline environments.

Safety

Safety Profile

CIR Status
Safe with restrictions
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has deemed Laureth ingredients, including Laureth-8, safe for use when properly formulated to be nonirritating. Allergic reactions or skin irritation from Laureth-8 are rarely observed, though individual sensitivities are possible. Manufacturers must implement purification steps to control potential trace amounts of 1,4-dioxane, a byproduct of the ethoxylation process. Notably, a general Laureth Carboxylic Acid has been associated with a risk of serious eye damage (Xi; R41) in rabbit tests, underscoring the critical need for precise formulation to ensure non-irritancy in cosmetic products.

Your Skin

Skin Compatibility

No Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

LAURETH-8 CARBOXYLIC ACID is a valuable functional ingredient for formulating stable skincare products, offering benefits for skin hydration and active ingredient delivery, provided it is carefully formulated to ensure non-irritancy.

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