Yes. All items that are put in the mystery box are new.

I buy some items from auctions, some in bulk and some at deep discounts.

Yes. Cosmetic items are one item that I do not buy from auctions. i buy these at deep discounts or in bulk and make sure they good a good shelf life.

I try to put at least one item from every category that you pick. Depending on the size of the box that is purchased, the number of categories pick, and inventory on hand at the time will determine if you get something from every category picked.