Sodium Lauroyl Methyl Isethionate (SLMI) is a mild anionic surfactant widely used in personal care formulations such as facial cleansers, shampoos and syndet bars. It offers gentle cleansing, stable foam and good skin compatibility, making it suitable for sulfate-free and mild cleansing systems. For another mild anionic surfactant used in sulfate-free cleansing blends, Sodium Lauroyl Sarcosinate is a related product to compare by active content, pH and foam profile.
Sodium Lauroyl Methyl Isethionate CAS 928663-45-0
- CAS: 928663-45-0
- Synonyms: SLMI, Sodium Lauroyl Methyl Isethionate
- Grade: Cosmetic Grade / Personal Care Grade
- Package: 25kg bags / cartons / customized packaging
Product Description
Quick Product Identity
- Category: Surfactant
- Function: Mild Cleansing Agent
- Application: Personal Care Formulations
- Supply Form: Powder / Flakes / Granules
Physicochemical Properties
| Property | Description |
|---|---|
| Appearance | White to off-white powder, flakes, or granules |
| Solubility | Dispersible in water |
| Odor | Mild characteristic odor |
| Ionic Type | Anionic |
| Stability | Stable under normal handling and storage conditions |
Typical Applications
Typically used in:
- Facial cleanser formulations
- Shampoo systems
- Body wash formulations
- Syndet bar production
- Mild cleansing formulation blends
For related mild surfactant pages, compare Sodium Lauroyl Sarcosinate, Sodium Lauroyl Isethionate, and Disodium Cocoyl Glutamate.
Packaging
The product is typically packed in sealed containers suitable for industrial handling, storage, and transportation. Packaging arrangements may vary according to product form and supply requirements.
Storage
Store in a cool, dry, and well-ventilated place. Keep the container tightly closed when not in use, and protect the product from moisture, direct sunlight, and excessive heat during storage and transportation.
FAQ - Technical & Supply Chain
-
Q:
What is Sodium Lauroyl Methyl Isethionate CAS 928663-45-0?
A: Sodium Lauroyl Methyl Isethionate, commonly abbreviated SLMI, is a mild anionic isethionate surfactant derived from coconut fatty acid. It is used in personal care formulations as a sulfate-free cleansing and foaming agent. -
Q:
Is SLMI suitable for sulfate-free shampoo and body wash formulations?
A: Yes. SLMI is widely selected for sulfate-free systems because it provides effective cleansing with a dense, creamy lather and lower irritation potential than many traditional sulfate surfactants. Its high water solubility also makes it useful in transparent formulations. -
Q:
What is the difference between SLMI and Sodium Cocoyl Isethionate?
A: Both belong to the isethionate surfactant family and offer mild cleansing. SLMI is based on a lauroyl C12 chain and tends to have excellent water solubility, allowing clear sulfate-free shampoo and cleansing systems, while Sodium Cocoyl Isethionate is often associated with opaque, creamy product formats. -
Q:
Which personal care products typically use Sodium Lauroyl Methyl Isethionate?
A: SLMI is used in facial cleansers, shampoos, body washes, syndet bars, baby cleansing products, and other mild personal care cleansing systems. It is often paired with amphoteric or nonionic surfactants to improve foam and skin feel. -
Q:
What supply forms and key specifications should be checked for SLMI?
A: It is commonly supplied as white to off-white powder, flakes, granules, or commercial liquid depending on grade. Buyers should check appearance, active content, ionic type, and pH; liquid commercial forms are often in the 30-35% active matter range, while solid forms may have higher active content.
Ordering & Documentation
Key information for document requests, quotations, and supply planning.
Documents
COA, TDS, SDS/MSDS and packing details are available on request.
Quotation
Send the CAS number, grade, quantity, packing preference and destination.
Sample & Supply
Support is available for samples, trial orders, bulk and repeat supply.
Storage & Shipping
Product-specific conditions are confirmed before order.









