When you buy through links on this page, HuffPost may earn a commission that helps support our journalism. Every product is handpicked by the HuffPost Shopping team, and prices and availability are subject to change. You might wonder how it can be that some mascaras cost $5 while others cost north of $40 . For those of us who watch our money yet are cautious of what we put around our eyes, is there any reason not to opt for the cheaper version and call it a day? According to previous HuffPost