Brands are Product attributes of your store, in the same way that Description and Name are also considered to be product attributes or product properties.

When associating a brand to your products, you will be able to use this attribute as a filter when browsing your store. It's fairly common for customers to search for products using a brand as keyword.

At VTEX, you need to create brands independently, meaning that once you create a product in your store, it should be associated with a previously created brand.