2-Aminoethanesulfinic acid, known as hypotaurine, listed as an antioxidant and reducing ingredient.
What it is
Aminoethanesulfinic acid is 2-aminoethanesulfinic acid, better known as hypotaurine, a small sulfur-containing compound. It occurs naturally as an intermediate in the biosynthesis of taurine. CosIng lists it as an antioxidant and a reducing ingredient.
Where it is used
Appears on the ingredient lists of a small number of 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 INCI name does not reveal whether it was obtained synthetically or in another way.
Functions
- Antioxidant
- Inhibiting reactions promoted by oxygen, thus avoiding oxidation and rancidity.
- Reducing
- Changing the chemical nature of another ingredient by adding hydrogen (or removing oxygen).
EU regulation
This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.