The page lists three packages: 2 bottles at $158 plus $9.99 shipping, 3 bottles at $207 with free shipping, and 6 bottles at $294 with free shipping.
That works out to $79 per bottle for two bottles before shipping, $69 for three, and $49 for six. The from $49 headline refers to the six-bottle price.
Smaller packs let you test with less outlay, while the six-bottle pack has the lowest per-bottle price. See the existing pricing guide for the supply-length questions, and confirm the final total at checkout.