Guarantee windows sound simple until you actually read the fine print. Here's one detail about Memodyne's guarantee that's worth knowing upfront.
Memodyne's 60-day guarantee is measured from your purchase date, not the day your bottles arrive.
If shipping takes two to three weeks, your effective evaluation window is shorter than the full 60 days. That's worth planning around rather than discovering later.
Start your bottles the day they arrive rather than waiting, and mark your calendar for the actual 60-day cutoff from your order date, not an assumed delivery date.
A guarantee is only as useful as the details behind it. Reading them once, calmly, before you need them is worth the two minutes.