Sodium methyl isethionate

Sodium methyl isethionate (CAS 869737-84-8), also marketed as SURFONIC SMI, is a mild sulfonate-based surfactant used primarily in personal care and cleaning formulations.

Where is Sodium methyl isethionate used?

• Personal care: primary or co-surfactant in shampoos, body washes, and facial cleansers where mildness and foam quality matter
• Home care and industrial cleaning: degreasing booster and soil dispersant on hard surfaces
• Textile processing: fiber wetting aid and dye distribution aid
• Paper and leather manufacturing: dispersing agent for surface treatment and processing aid applications
• It delivers cleansing and emulsification while remaining compatible with sensitive skin.

Commercial specifications

• Packaging ranges from drums to IBC totes for bulk procurement