Sodium Methyl 2-Sulfolaurate
INCI: SODIUM METHYL 2-SULFOLAURATE
Reviewed by Rosie · Last updated 14 Aug 2026
A mild surfactant that cleanses and foams in gentle formulations
Best For Skin Types
All, Sensitive
Addresses
Usage Frequency
Daily
What Is Sodium Methyl 2-Sulfolaurate?
Sodium methyl 2-sulfolaurate is a synthetic surfactant derived from lauric acid, a naturally occurring fatty acid. It belongs to a class of cleansing agents called sulphonated surfactants, which are designed to remove oils and impurities from the skin's surface whilst maintaining a gentle profile.
In skincare products, it primarily functions as a cleanser and foaming agent. Its mild nature means it's often chosen for formulations intended for sensitive or delicate skin, as it tends to be less stripping than stronger surfactants.
How It Works
Surfactants are amphiphilic molecules, meaning they have both water-loving and oil-loving ends. Sodium methyl 2-sulfolaurate positions itself between oil and water, breaking up sebum and dirt into smaller particles that can be rinsed away with water. This allows it to cleanse without requiring harsh scrubbing or caustic pH levels.
Because it's a milder surfactant, it generally produces less inflammation at the skin surface compared to stronger detergents, which can be an advantage for those with sensitive or compromised skin barriers.
Clinical Evidence & References
Research specifically examining sodium methyl 2-sulfolaurate in skincare is limited. However, sulphonated surfactants as a class have been studied for their mildness and tolerability. Available evidence suggests they are gentler than many traditional anionic surfactants, with lower potential for irritation when used at appropriate concentrations.
Long-term efficacy and safety data in cosmetic formulations remain sparse, so claims about this ingredient's performance should be viewed as preliminary. It performs its basic cleansing function well, but is not a targeted treatment ingredient for specific skin concerns.
How to Use
Use sodium methyl 2-sulfolaurate-containing products as you would a standard cleanser: apply to damp skin, massage gently, and rinse thoroughly with lukewarm water. Because it is a cleansing agent rather than a leave-on treatment, frequency of use will depend on your product type (e.g. daily for a facial wash, as directed for a mask or exfoliant).
Safety & Precautions
Frequently Asked Questions
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