Sales tax in Canada is 14.5 % so that's already quite a bit.
Things are also more expensive in Europe because costs of owning a business are higher. Employees have higher salaries, and rent for the shops is higher too. In Switzerland the eyeshadows are a lot more (I can't remember exactly how much) but it's relative to the higher wages people earn there, so in the end effect it balances out. People earn more money, but products are also more expensive.