The supplement gives customers 10 days to decide whether or not to cancel their trial subscription without being charged anything but shipping and handling for the trial. Many frustrated customers have complained that this is not enough time to adequately test the product. While this isn’t a traditional “money back guarantee,” the supplement maker’s approach aims to ensure that customers are made whole if they aren’t completely satisfied. But the amount of time the manufacturer gives to customers to assess the product probably isn’t enough. T Zytek XL o the supplement’s credit, however, they do make the information about cancellation and the terms of the trial quite clear. Shipping For their free trial offer, the manufacturer offers a supply of for just the price of shipping and handling: $9.95. Most customers can receive a promotional discount that reduces the price of shipping to just $5.95. This represents an affordable shipping price for a free trial. http://www.maxmusclestack.com/zytek-xl