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Moumoujus

LAURETH-5 CARBOXYLIC ACID.

Valuable CAS 27306-90-7 / 220622-96-8 / CLEANSING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

Laureth-5 Carboxylic Acid is an anionic surfactant integral to cosmetic formulations, functioning primarily as a cleansing agent and emulsifier. It effectively removes impurities from the skin and hair, while also stabilizing oil-in-water emulsions and contributing to foam generation.

Summary

cleansing emulsifying surfactant foaming

Science

Mechanism of Action

This ingredient functions by reducing the surface tension of cosmetic products, ensuring uniform distribution. It possesses cleansing capabilities, aiding in the removal of lipid and particulate matter from dermal and hair surfaces. Additionally, it serves as an emulsifying agent, facilitating the stable dispersion of immiscible liquids by modifying their interfacial tension, and is recognized for its foaming properties.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH 5 – 7
0 7 14

Stability

The ingredient performs optimally within a pH range of 5.0 to 7.0, acting as a nonionic compound under acidic conditions and a hard water-tolerant anionic agent under alkaline conditions. It demonstrates robust physico-chemical stability, including stability in hard water and hypochlorite solutions.

Conflicts

  • Anionic surfactants, such as Laureth-5 Carboxylic Acid, may interact with cationic active ingredients or preservatives, potentially decreasing their effectiveness or compromising formulation stability.
  • Surfactants can diminish the bioavailability or efficacy of actives that rely on direct interaction with skin, hair, or microbial targets.
  • The effective concentration of preservatives can be reduced by surfactants through micellar entrapment or ionic binding, which may lead to compromised microbial challenge test results.

Safety

Safety Profile

CIR Status
Safe with restrictions
Sensitization risk Moderate

The CIR Expert Panel considers 'Laureth ingredients,' including Laureth-5, safe for cosmetic use when formulations are designed to be non-irritating. The compound carries a potential for skin irritation, necessitating careful formulation. Minor amounts of 1,4-dioxane, a by-product of ethoxylation, may be present but are controllable through purification processes. Specific SCCS or FDA statuses for this ingredient in cosmetic use were not detailed in the provided data.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Laureth-5 Carboxylic Acid is a versatile surfactant and emulsifier crucial for cleansing formulations, requiring precise development to ensure optimal performance, non-irritancy, and compatibility with other ingredients.

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