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LAUROYL ALANINE.

Valuable CAS 52558-74-4 / CLEANSING, SOLVENT, SURFACTANT - CLEANSING

Lauroyl Alanine is an amino acid-derived surfactant and emulsifier, recognized for its gentle yet effective cleansing properties. It adeptly removes impurities and excess oil, while also contributing to skin hydration and the maintenance of a balanced skin barrier.

Cleansing Surfactant Emulsifying Skin Conditioning Moisturizing (via barrier support) Exfoliating (assists) Antibacterial Solvent

Science

As an amphiphilic molecule, Lauroyl Alanine functions primarily as a surfactant, reducing interfacial tension to effectively encapsulate and lift dirt, oils, and other impurities from the skin's surface. In formulations, it stabilizes oil-water mixtures. On the skin, it aids in forming a protective barrier that locks in moisture, supporting long-lasting hydration and maintaining the skin's natural equilibrium. It further offers skin-conditioning benefits, assists in the mild removal of dead skin cells, and exhibits properties such as good wettability, foamability, and antibacterial activity.


Research

Medium confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Demonstrated significant removal efficacy against methamidophos (64.63%) and acephate (74.66%) pesticides on cotton cloth within 2 minutes, indicating potent cleansing capability. It also exhibited effective peculiar smell elimination.
  2. 02 Reduced interfacial tension by less than 5-fold compared to control, effectively making oil-coated surfaces less oil-wet and more water-wet, thereby facilitating oil release.

Transparency

Not commonly dusted

The Formula

Solubility
Both
Optimal pH 6 – 7
0 7 14

Stability

Aqueous solutions of Lauroyl Alanine exhibit optimal stability and efficacy when neutralized to a pH range of 6-7, a range that is well-suited for human skin compatibility.


Safety

CIR Status
Safe with restrictions
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel concluded that amino acid alkyl amides, including Lauroyl Alanine, are safe in cosmetic use and concentrations, provided formulations are designed to be non-irritating. Its safety is implicitly recognized under the FDA's Voluntary Cosmetic Registration Program (VCRP).


Your Skin

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

Our Assessment

Valuable

Lauroyl Alanine is a valuable, mild surfactant that excels in gentle cleansing and supporting skin barrier function across all skin types, making it ideal for precision skincare formulations.


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