What it is
Stearic Acid is an essential fatty acid that is obtained from both animal and vegetable fats and oils.
What it does
Stearic Acid is an emulsifier that helps water and oil components of a product to mix. In addition, Stearic Acid is used as a cleasing agent, a thickener and it gives smudgeproof and waterproof properties to mascaras.
Stearic Acid can cause irritations.