This site lists 3 bottles, a 90-day supply, at $69 per bottle, $207 total, tagged Free Shipping.
Free US shipping and the 60-day guarantee. The tag on this package is about shipping, while the six-bottle package carries the Most Popular tag.
It sits between the two-bottle and six-bottle options in both price per bottle and supply length, with 90 days matching the top of the 30-90 days range.