What it is
This ingredient is a starch that has been both oxidized and acetylated to improve its stability and performance in cosmetic formulas. It helps control viscosity, form thin films, and refine the sensory feel of a product, often reducing tackiness. It is used in sunscreen lotions to support an even, comfortable application.
Safety & warnings
Modified starches such as this are generally well tolerated and are not recognized fragrance allergens. They are widely used as texture agents with a low likelihood of irritation.
Origin & sourcing
Semi-synthetic: a plant-derived starch that has been chemically modified by oxidation and acetylation.
Questions everyone asks
What is oxidized starch acetate used for?
It is used as a thickener and film former that adjusts viscosity and improves the feel and spread of the product.
Is it natural?
It starts from a plant-derived starch but is chemically modified, so it is best described as a semi-synthetic ingredient.