A 60-day guarantee from the purchase date is advertised. One section says you need at least 30 days of use before asking for a refund, while the FAQ says only to ask within 60 days. The refund process, return shipping and whether unused bottles must be returned are not described.
Read the refund terms on the official checkout page before ordering, request refunds from the official seller, not this website, and keep your order confirmation and bottles.