Natural & artificial flavors. Thank you for purchasing the Popz microwave popcorn tub. With five US Patents, this product is one of the most creative, convenient and innovative packaging concepts in the microwave popping industry. Once you try Popz Premium Microwave Popcorn you will agree this is the best popcorn you have ever tasted - Sincerely, The Popz Team. The Popz promise: We guarantee your satisfaction with this product. Made in the USA.