To properly store your Laetrile B17 supplements, it is crucial to adhere to the storage guidelines on the product's label. These supplements can be stored for up to two years in a cool, dry place such as a cupboard away from any direct sunlight, also to avoid moisture or heat. . Check the expiration date on your supplements before using them. The best results are obtained by regular and consistent intake so there should be no need in normal practice for store for more that 90 days or 6 months.