Sodium laureth carboxylate
Description
Sodium laureth carboxylate (CAS 33939-64-9) is an ether carboxylate surfactant derived from ethoxylated lauryl alcohol. It delivers effective cleansing, foaming, and emulsification performance across personal care formulations.
This versatile ingredient offers mildness profiles that suit sensitive-skin product lines. In shampoos and body washes, it functions as a primary or co-surfactant, generating stable foam while maintaining compatibility with skin and hair proteins.
Facial cleansers and micellar formulations use it to emulsify sebum and cosmetic residues without the harshness associated with conventional sulfate surfactants. It also performs well in conditioning rinse-off products.
In these applications, controlled foam and low irritation potential are formulation priorities. Liquid hand soaps and baby care products rely on it for degreasing efficacy combined with a gentler cleansing profile.
This profile is particularly suited to frequent use and delicate skin types. Sodium laureth carboxylate is typically supplied as a clear to slightly hazy aqueous liquid for easy handling in manufacturing.
Standard active concentrations in commercial grades are commonly around 25–30% active matter. Both cosmetic-grade and technical-grade designations are available depending on the specific industrial or personal care application.
Cosmetic-grade material meets purity requirements relevant to personal care finished goods. This ensures the final product maintains high quality and safety standards for consumer use in various global markets.
Physical Properties
| Log P | 4.653 (est) |
Safety & Handling (Learn More)
Documentation
Other Names
RefChem:883664|Rlm 45|2-(2-dodecoxyethoxy)acetic acid|[2-(DODECYLOXY)ETHOXY]ACETIC ACID|Akypo RLM-45CA|3,6-dioxaoctadecanoic acid|Poly(oxy-1,2-ethanediyl), α-(carboxymethyl)-ω-(dodecyloxy)-, sodium salt (1:1)
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