Memocept is reported to carry a 60-day money-back guarantee from the manufacturer, conditional on a minimum of 30 days of use.
The seller advertises a 60-day satisfaction guarantee beginning on the purchase date, but asks buyers to use the supplement for at least 30 days before requesting a refund.
Contact the official store directly with your order number, after your 30-day minimum use period and within the 60-day window, for return instructions.