I love the idea of this lip balm and like to joke that if this really works, Zi Zai would go out of business! But seriously, it works because you aren't constantly putting lip balms on all the time. I use all of Zi Zai's lip balms because I like to rotate to get all the benefits of each of them. I find that I use less product than I do with other store bought balms because these really work. Taking that into consideration, the price is very cost effective.