Business Expense for 1099

Hello, as tax season is upon us, I was entering in my 1099 info for a side income I had made and was asked if I have any expenses I can report associated with this 1099. I had participated in a research study that required me to purchase a product for $499. My total 1099 was $829. Can I deduct the purchase price of the product? Would it just go into the “other” category if so? On a side note, I was able to keep the product after the study concluded (however, I also had no option to return the product to get my money back either). Thanks for your help!