Real Hair Smoothies are professionally pasturized at our factory in Sacramento, California. The tested refrigerated life is 30 days once seal is open; or 6 months in the freezer once the seal is opened. We recommend after first use of product to freeze the remaining until it’s time for your next treatment!   this will ensure the maximum amount of freshness for the longest duration of time. Your hair smoothie is 95% food-based, so just remember to treat it like real food for your hair.