If you decide to request a refund within the stated guarantee window, who covers the return shipping is worth confirming directly.
Contact customer support to confirm whether return shipping is covered by the brand or paid by the customer, since this specific detail isn't always published on the pages we reviewed.
A guarantee that requires you to pay return shipping is worth less than one that doesn't — worth confirming this detail before you order, not after you've decided to request a refund.
The 6-bottle bundle carries the lowest displayed per-bottle price and free US shipping.
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