Grado Supplements generally specifies the shelf life of their products on the packaging, as it can vary depending on the specific supplement. Typically, a shelf life for many dietary supplements ranges from one to three years from the date of manufacture when stored properly. To ensure the best quality, it is important to keep the products in a cool, dry place away from direct sunlight. It is advisable to check the expiration date printed on the label for each specific product. If the product is within the marked shelf life and has been stored correctly, it should retain its potency and effectiveness. For more detailed information regarding the shelf life of a particular supplement, it may be beneficial to visit the official website or review the product label.