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Oxidized Starch Acetate

What Oxidized Starch Acetate is & what it does

Oxidized Starch Acetate is a chemically modified starch, made by oxidizing and acetylating a natural starch base such as corn or potato. In cosmetic and sunscreen formulas it acts as a texturizer and thickener, and it can lend a soft, dry, powder-like feel that helps reduce greasiness. Its film-forming nature can also help a product sit more evenly on the skin.

What does Oxidized Starch Acetate do in skincare?

Oxidized Starch Acetate acts as a texturizer and thickener. It can give a product a soft, dry, powder-like finish that helps cut greasiness and lets the formula sit more evenly on the skin.

Is Oxidized Starch Acetate comedogenic?

Oxidized Starch Acetate is a modified starch used mainly for texture, and it is not generally flagged as a pore-clogging ingredient. How any full product feels depends on the complete formula, so people prone to breakouts may want to watch how their skin responds.

Is Oxidized Starch Acetate natural or synthetic?

It is best described as nature-derived but chemically modified. It starts from a natural starch such as corn or potato, then is oxidized and acetylated to change how it performs in a formula.

Sunscreens with Oxidized Starch Acetate

We rate 23 sunscreens that contain it, showing the top 10 by overall score:

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