Yoga toes are brace like devices that stretch the toe joints and help make you more flexible. What they don't do is magically get rid of your bunion. Your bunion pain sometimes can be improved with use of the Yoga toes, but there are many other options. These range from oral and topical anti-inflammatories, to inserts for your shoes, to surgery.
Don't be fooled, bunions are a real problem that need real treatment...not something you bought off the internet.