The smallest package tier here carries a shipping charge that the larger packages don't — worth factoring into your actual total cost comparison, not just the per-bottle price.
The single bottle is $79 for a 30-day supply plus shipping charged separately, while the 3-bottle and 6-bottle packages both include free US shipping.
A seemingly small shipping fee changes the true total cost of the smallest package — worth adding it into your comparison rather than judging packages by per-bottle price alone.
Backed by a 90-day money-back guarantee.