INCI name

HYDROXYSTEARIC ACID

Hydroxystearic acid

A hydroxylated fatty acid used in emulsions and sticks.

What it is

Hydroxystearic acid (12-hydroxystearic acid) is a saturated fatty acid with a hydroxyl group, typically derived from hydrogenated castor oil. CosIng lists it as cleansing and emulsifying.

Where it is used

Found in creams, cleansers, soaps and stick products such as deodorants and lipsticks.

Limits of interpretation

The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.

Its role depends on the formula: it may act as an emulsifier, structuring agent or soap component.

Functions

Cleansing
Helping to keep the body surface clean.
Surfactant – emulsifying
Helping suspensions or dispersions of liquids in a second liquid by reducing the surface tension of the substances to be emulsified.
Surfactant – cleansing
Wetting body surfaces, emulsifying or solubilizing oils, and suspending soil (generally, such ingredients contribute to the foaming and lathering properties of cleansing products).

EU regulation

This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.

Products with this ingredient (87)

Check a full ingredient list