The shelf life of GreenSmartLiving e-liquids typically depends on several factors, including the ingredients used in the formulation and the storage conditions. Generally, e-liquids are best used within one to two years from the date of manufacture for optimal flavor and quality. To ensure longevity, it is important to store the e-liquids in a cool, dark place, away from direct sunlight and extreme temperatures. Exposure to heat or light can degrade the ingredients more quickly. Additionally, it is advisable to keep the bottles tightly sealed when not in use to minimize oxidation. For the most accurate information regarding specific products, it may be beneficial to refer to the labeling on the e-liquids or visit the GreenSmartLiving website where they may provide further details.