Sorry if this is a really simple question, I've been looking everywhere for an answer and haven't really understood what I've found, so I figured I may as well ask for help.

I'm currently working on a makeup store (I'm developing it using MAMP so I can't give you a link, sorry) and I need to be able to sort products in two ways - by the brand of the item, and what the item actually is.

For example, I have a nail polish that is by OPI, so I want the product to be found if OPI and/or nail polish is searched - how would I go about doing that? And is it possible to create a separate "list" of the types of products?

I'm currently assigning the brand name as a category and have a list of categories available, so would I be able to do the same with the types of products?