Laureth-7
What is Laureth-7?
Laureth-7 is a synthetic nonionic surfactant created by ethoxylating lauryl alcohol, typically sourced from coconut or palm kernel oils, with seven units of ethylene oxide. This results in a molecule featuring a hydrophobic lauryl chain and a hydrophilic polyoxyethylene head, giving it an optimal hydrophilic-lipophilic balance for cosmetic applications. It appears in rinse-off products like shampoos, body washes, and facial cleansers, as well as leave-on emulsions such as lotions and creams. By reducing surface tension, Laureth-7 allows water to penetrate and lift oils, dirt, and impurities during cleansing. As an emulsifying agent, it forms a protective film at the oil-water interface, stabilizing formulations to prevent phase separation and deliver uniform texture and spreadability. Its mild nature suits a range of personal care products requiring gentle yet efficient performance.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Delivers thorough cleansing by removing oils and residues without harshness.
Stabilizes emulsions for smooth, consistent product textures.
Supports foaming in wash-off cleansers for a satisfying lather.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| Users looking for non-comedogenic cleansing options. | Those sensitive to ethoxylated surfactants. |
| Individuals using emulsion-based moisturizers and lotions. | Individuals wary of potential impurities like 1,4-dioxane. |
| People preferring mild surfactants in daily hygiene products. | People with very reactive skin preferring minimal ingredient lists. |
Safety Notes
- Considered safe for cosmetic use by expert reviews at typical concentrations.
- Low hazard rating reflects minimal concerns in rinse-off and diluted leave-on products.
Frequently Asked Questions about Laureth-7
What is Laureth-7 used for in cosmetics?
It serves as a surfactant for cleansing and an emulsifier to blend oils and water in cleansers, shampoos, and lotions.
Is Laureth-7 safe for sensitive skin?
It shows low irritation in reviews, suitable for many, but patch test if sensitivity is a concern.
Does Laureth-7 clog pores?
No, it has a comedogenic rating of 0, making it suitable for acne-prone skin.