A "60-day money-back guarantee" sounds reassuring, but the details behind it vary more than people expect.
Does the window start from your order date or your delivery date? Do you need to return the physical bottle, even if opened? Is there a restocking fee? These details usually live in the terms, not the headline.
The best time to read a guarantee's fine print is before you order, not after you've decided you want a refund and are trying to figure out the process under time pressure.
A guarantee is only as good as its actual terms. Read them once, calmly, before you need them.