The 6-bottle package carries a specific value worth understanding precisely: the lowest cost per bottle among the three package sizes, plus free shipping.
$49/bottle for a 6-month supply, totaling $294, with free shipping — against the $79/bottle price on the smallest 2-bottle package.
Given this formula's own materials describing recall benefits as building through Month 2 and ongoing cumulative benefit beyond that, a 6-month supply gives genuine room to evaluate fairly well beyond that window.