Shelf Life/Storage: Up to 1 year if stored away from natural light at room temperature when not in use. Past that, the product will not spoil, but may lose its potency. If stored in cold environment, product may appear to crystallize overtime. Crystallization is purely aesthetic and will not affect the function of the stick. If this occurs, simply leave it at room temperature for an hour and product should restore to original state. Oil color & smell may slightly vary from batch-to-batch due to natural ingredient variations.