This site's own FAQ addresses this directly: the guarantee runs 60 days from purchase, and if you are not fully satisfied for any reason, you can request a full refund within 60 days.
Worth noting this site states the guarantee applies for any reason, not just a specific list of qualifying complaints — worth reading that as a broader guarantee than some competitor sites offer.
This FAQ answer restates the same purchase-date starting point and documentation requirement covered in the site's own dedicated guarantee section — worth reading both as consistent, not contradictory.
Backed by a 60-day money-back guarantee.
See The Current BreathiZen Offer