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Cosmetics Ingredients
The material selection platform
Cosmetics Ingredients


CAS Number 97375-27-4
Chem/IUPAC Name: Sulfuric acid, monococo alkyl esters, sodium salts
EINECS/ELINCS No: 306-683-4
COSING REF No: 37829
Sodium Coco-Sulfate (SCS) is the sodium salt of the sulfate ester of coconut alcohol. It is a surfactant which means that it makes foam and cleanses the skin and hair. A fine noodle form of this anionic surfactant is the most common form. Its primary purpose is to serve as the foamer in topical personal cleansing products. It is a salt of fatty alcohols bound to a sulfate group and belongs to the family of compounds called alkyl sulfates. Coconut oil is the source of fatty alcohols for those ingredients with Coco in the name.

What is SODIUM COCO-SULFATE used for?

Sodium Coco-Sulfate is an anionic surfactant and is used to remove oily stains and residues. It is used at concentrations of 0.3% to 29.0%. When used to clean hair and skin, sodium coco sulphate makes a gentle foam that effectively dissolves grease and dirt. It is a good sodium lauryl sulphate substitute that doesn't use palm oil because it's made from the fatty acids in coconut oil.


By treating the corresponding alkyl alcohol with a calculated amount of sulfuric acid, neutralizing the resulting mixture with sodium hydroxide, and rapidly filtering, sodium alkyl sulphates can be made from their corresponding alkyl alcohols. Crystals are created by cooling and evaporating the filtrate.

Sodium Coco-Sulfate is produced without removing any of the higher molecular weight fatty acids that are essential to Cocos Nucifera (Coconut) Oil, in contrast to sodium lauryl sulphate. Because of this, cleansers made with coco sulphate rather than sodium lauryl sulphate typically have denser, creamier foam and may even be translucent rather than clear.

What does SODIUM COCO-SULFATE do in a formulation?

  • Cleansing
  • Emulsifying
  • Surfactant

Safety profile

The safety of alkyl sulphates including Sodium Coco-Sulfate has been assessed by the Cosmetic Ingredient Review (CIR) Expert Panel. The CIR Expert Panel evaluated the scientific data and concluded that these compounds were safe for use as a cosmetic ingredient.

Technical profile

Property Values
Melting Point 206°C
pH 9.0-11.0
Solubility Soluble in water
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