Sodium Hydrogenated Cocoyl Methyl Isethionate
INCI: SODIUM HYDROGENATED COCOYL METHYL ISETHIONATE
Reviewed by Kate · Last updated 14 Aug 2026
Also known as: Sodium Hydrogenated Cocoyl Methyl Isethionate
A coconut-derived cleanser that removes oil and dirt whilst supporting stable foam
Best For Skin Types
All, Oily, Combination
Addresses
Usage Frequency
Daily
What Is Sodium Hydrogenated Cocoyl Methyl Isethionate?
Sodium Hydrogenated Cocoyl Methyl Isethionate is a mild surfactant derived from coconut oil. It belongs to a class of cleansing agents known for their gentle action on the skin, making it a popular choice in facial cleansers and body washes.
As a surfactant, this ingredient works by reducing the surface tension of water, allowing it to lift away oils, makeup, and impurities from the skin's surface. It also enhances the stability and volume of foam in cleansing formulations, which can improve the sensory experience of using a product.
How It Works
Surfactants have one end that attracts water and another that attracts oil. This dual nature allows them to surround oil droplets and dirt particles, suspending them in water so they can be rinsed away. Sodium Hydrogenated Cocoyl Methyl Isethionate performs this action whilst maintaining a relatively neutral pH and low irritation potential.
The ingredient also reinforces the foam structure of a cleanser by stabilising air bubbles within the formulation, which can make the product feel more luxurious and easier to apply evenly across the skin.
Clinical Evidence & References
This ingredient has a long history of safe use in cosmetic formulations and is well-tolerated across a range of skin types. Its mild nature stems from its structural similarity to naturally occurring amino acids, which reduces the likelihood of irritation compared to harsher surfactants.
Research on this specific ingredient is limited in published dermatological literature, though it has been assessed for safety by regulatory bodies including the Cosmetic Ingredient Review panel. It is considered suitable for use in leave-on and rinse-off products at typical concentrations.
How to Use
This ingredient is typically found in rinse-off cleansers and body washes rather than leave-on products. Use as directed on product instructions — usually as part of your daily cleansing routine. A small amount, roughly a pea-sized portion, is usually sufficient when applied to damp skin. Rinse thoroughly with lukewarm water to remove all product residue.
Safety & Precautions
Frequently Asked Questions
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