Ingredient dictionary

Sodium Cocoyl Isethionate

Sodium Cocoyl Isethionate is a mild, coconut-derived surfactant that cleans by lifting oil and dirt and building a soft, creamy lather. It is on the label of 29 products in our library. Checked against our library November 6, 2026.

What Sodium Cocoyl Isethionate does

Cleans by lifting oil and dirt
Builds a soft, creamy lather
Gentle option in bars and washes

Sodium Cocoyl Isethionate is made by joining fatty acids from coconut oil with isethionic acid, then turning the result into a sodium salt. It is a surfactant, a molecule with one end that attracts oil and one that attracts water. That lets it lift oil, dirt, and makeup so they rinse away.

Formulators reach for it because it is considered a milder choice than classic soap-based cleansers. It is a common pick for syndet bars, which are soap-free cleansing bars, and for gentle face washes and shampoos. It builds a soft, creamy lather and leaves skin feeling smooth, not tight, though results depend on the full formula.

Good for

Good for people who want a gentle, creamy cleanser, including those with dry or sensitive-feeling skin or hair.

Frequently asked questions

Is Sodium Cocoyl Isethionate safe for sensitive skin?

It is generally considered one of the milder cleansing ingredients, so it appears often in gentle products. Results still depend on the full formula and your skin. If a product stings, stop using it and ask a dermatologist.

Does Sodium Cocoyl Isethionate dry out hair?

It cleans by removing oil along with dirt, but it is often described as gentler than harsher surfactants. That is why it appears in shampoos for people who find other formulas drying. A conditioner can help balance any dryness.