A fat-soluble ester of vitamin C used as an antioxidant.
What it is
Ascorbyl stearate is the ester of ascorbic acid (vitamin C) with stearic acid, which makes it soluble in fats and oils. CosIng lists it as an antioxidant.
Where it is used
Found in creams, lip products, makeup and other oil-containing products.
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.
The label does not show the amount used.
Functions
- Antioxidant
- Inhibiting reactions promoted by oxygen, thus avoiding oxidation and rancidity.
EU regulation
This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.

