Although we are ultimately a Canadian Company, our shopping cart is priced in USD as it's the international currency of choice around the world. We sell our product in over 50 countries (all with different currencies),and the best we can do is to price our product with the most recognizable currency to every country, and this is of course is the US Dollar.
Most of our expenses are also paid by our company in USD, including advertising, shipping (contracted through a US company), and we we also produce our product within the United states.
I hope this helps to explain and please let us know if you have any further questions:) Kindly, Customer Service.