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LAUROYL BETA-ALANINE.

Valuable CAS 21539-56-0 / CLEANSING, SURFACTANT - CLEANSING

Lauroyl Beta-Alanine is an amino acid-derived amphoteric surfactant engineered for gentle yet effective cleansing. It is valued for its ability to remove impurities and condition the skin without compromising the epidermal barrier.

Summary

Surfactant - Cleansing Agent Skin Conditioning Agent Foam Booster

Science

Mechanism of Action

Functioning as a mild amphoteric surfactant, Lauroyl Beta-Alanine efficiently reduces water's surface tension, allowing for the solubilization and emulsification of sebum and environmental debris. It forms micelles that encapsulate these impurities, facilitating their rinse-off, while its amino acid structure contributes to its mildness and a soft post-cleansing skin feel.

Research

Clinical Evidence

Medium confidence
Effective range 1–15%
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

Lauroyl Beta-Alanine is a foundational functional ingredient, not typically 'dusted' as a primary active. Its key role is in formulation performance and user experience (mildness, cleansing efficiency) rather than standalone therapeutic skin benefits.

The Formula

Formulation

Solubility
Water
Optimal pH 4.5 – 8
0 7 14

Stability

Exhibits excellent stability and performance across a moderately acidic to mildly alkaline pH range, typical for amphoteric surfactants, making it highly adaptable for diverse cosmetic matrices.

Synergies

  • Anionic and non-ionic surfactants for balanced mildness, foam synergy, and rheology modification
  • Humectants and emollients to further enhance post-cleansing skin hydration and comfort

Conflicts

  • High concentrations of certain cationic polymers can lead to reduced clarity or precipitation due to coacervation, though less pronounced than with purely anionic surfactants.

Safety

Safety Profile

CIR Status
Safe
Max tested
15%
Pregnancy
Safe
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has assessed amino acid-derived surfactants, including Lauroyl Beta-Alanine, affirming their safety in cosmetic formulations. It is generally recognized for its very low potential for skin irritation and sensitization. A maximum concentration of 15% is considered safe for general cosmetic use, with higher concentrations permissible in rinse-off products.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Lauroyl Beta-Alanine is a valuable, mild cleansing agent that ensures effective impurity removal with a high degree of skin compatibility, making it ideal for precision formulations prioritizing barrier integrity and comfort.

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