Laureth-3
What is Laureth-3?
Laureth-3, also known as polyoxyethylene (3) lauryl ether, is a synthetic nonionic surfactant produced by reacting lauryl alcohol—typically sourced from coconut or palm kernel oils—with three molecules of ethylene oxide. This ethoxylation process enhances its water solubility and mildness. Commonly found in shampoos, body washes, facial cleansers, and emulsified lotions or creams, it functions by lowering surface tension between oil and water phases. As a surfactant, it enables dirt and oil removal during cleansing while promoting foam formation. In its emulsifying role, it forms a stable interfacial film that prevents separation, ensuring product consistency and smooth texture application. Its short ethoxylate chain contributes to gentle performance compared to longer-chain variants, making it suitable for rinse-off and leave-on formulations across personal care categories.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Supports gentle cleansing by reducing surface tension to lift impurities without harshness.
Stabilizes emulsions in creams and lotions for even texture and application.
Contributes to foaming in washes while maintaining low pore-clogging potential.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| People with oily or acne-prone skin seeking non-comedogenic cleansers. | Those with known allergies to ethoxylated ingredients. |
| Individuals preferring mild surfactants in daily shampoos and body washes. | People preferring completely natural or sulfate-free alternatives. |
| Users of emulsified products like moisturizers needing stable formulas. | Individuals sensitive to potential trace impurities in surfactants. |
Safety Notes
- Rated low to moderate concern by safety assessors, safe for cosmetic use as reviewed by experts.
- Non-comedogenic, unlikely to clog pores based on established ratings.
Frequently Asked Questions about Laureth-3
What is Laureth-3 used for in cosmetics?
Primarily as a surfactant for cleansing and foaming, and emulsifier for stable oil-water mixes in washes and lotions.
Is Laureth-3 comedogenic?
It has a comedogenic rating of 0, indicating low risk of pore clogging.
How safe is Laureth-3?
Safety reviews deem it safe for use in cosmetics within typical concentrations.