I am a Wellness Advocate for doTerra and spent more on starting up my business in 2015 than I made. Can I deduct more than I made in a year?

In 2015 I became a Wellness Advocate for doTerra.  In order to start up my business I spent more last year than I actually made.  I  use some of the essential oils for my personal use but also sample the products to others.  Can I actually write off more money than I made as a start up business?