SPF Scout · Ingredient

Sodium Carboxymethyl Starch

Binder (holds the formula together)Emulsion stabilizer (keeps oil and water mixed)Film forming (leaves a thin coating)Viscosity control (thickens or thins the formula)

CAS 9063-38-1

What this ingredient generally does

Sodium Carboxymethyl Starch is a starch-based ingredient that adjusts thickness and helps hold the formula together. It binds ingredients, keeps the oil and water parts from separating, and forms a thin film as the product dries.

Reviewed before publication. This note describes function in a formulation, and nothing else.

Published formulations that list this ingredient

These are the formulations currently published in the SPF Scout catalog whose stored ingredient declaration includes this ingredient. It is not a list of every product on the market, and the order carries no meaning.

No published formulation in the SPF Scout catalog currently lists this ingredient. The catalog is small: only reviewed records are published.

Checking this against your own list

You can select this ingredient in the SPF Scout app as one to flag. The app compares your selections against a product's stored declaration on your device; your list never reaches this website.

This comparison does not predict whether your skin will react.

Where this information comes from

Ingredient names, CAS numbers and recorded functions come from SPF Scout’s curated ingredient dictionary, grounded in CosIng, the European Commission’s Cosmetic Ingredient Database. Content © European Union, reused with acknowledgement.

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