Cornstarch is a thickening agent regularly used to improve the thickness and texture of soups, sauces, marinades, and sweets. Ideal for fruit sauces, fruit pies, and puddings.

There is just one ingredient in Argo corn starch: Corn Starch

Corn starch is a natural, odourless carbohydrate that is found in the corn kernels

Gluten is absent in corn starch, so yes it's gluten-free which makes it an excellent substitute for flour in numerous recipes.