The BreathiZen name is also used on a sister domain, brreathiizen.com, and facts there are not identical to this site.
Affiliate and marketing sites often run several domains for one product. That is not automatically a problem, but it means details such as pricing or guarantee wording can differ.
Compare the two pages, confirm price, shipping and guarantee terms at the checkout page you actually use, and keep the order confirmation. When details conflict, the checkout and the bottle label win.