Magnesium Laureth-8 Sulfate
What is Magnesium Laureth-8 Sulfate?
Magnesium Laureth-8 Sulfate is a synthetic anionic surfactant created by reacting lauryl alcohol with eight moles of ethylene oxide to form laureth-8, then sulfating the product and neutralizing it with magnesium. This results in a compound with a polar sulfate group attached to magnesium and a hydrophobic lauryl chain, enabling its amphiphilic properties. Primarily found in rinse-off personal care products such as shampoos, shower gels, facial cleansers, and bubble baths, it works by lowering the surface tension of water. This action allows it to emulsify oils, lift away dirt and sebum, and generate stable foam, facilitating thorough rinsing without residue. The ethoxylation reduces crystallinity and potential harshness, while the magnesium ion may offer a gentler profile than monovalent alternatives in similar formulations.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Delivers effective dirt and oil removal through micelle formation.
Produces abundant, stable lather for a satisfying cleansing experience.
Supports even distribution of cleanser on skin or hair surfaces.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| Individuals with normal to oily skin needing reliable cleansing. | Those with very dry or compromised skin barriers. |
| Users preferring foaming shampoos and body washes. | Individuals experiencing irritation from ethoxylated surfactants. |
| People seeking surfactants in rinse-off products for daily hygiene. | People preferring completely sulfate-free formulations. |
Safety Notes
- Rated low hazard by environmental working group assessments.
- Deemed safe for use in rinse-off cosmetics by cosmetic ingredient review experts.
Frequently Asked Questions about Magnesium Laureth-8 Sulfate
What products contain Magnesium Laureth-8 Sulfate?
Commonly used in shampoos, body washes, and facial cleansers for its foaming and cleansing abilities.
Is it gentler than other sulfates?
Its ethoxylation and magnesium counterion contribute to a potentially milder profile in rinse-off uses.
Can it cause skin irritation?
Generally low irritation risk in typical cosmetic concentrations, especially in rinse-off products.