The natural mango pineapple flavor we use is obtained using simple processes like extraction, essential oil distillation, and infusion from real, organic fruit. While the specific blends are proprietary, we can say our natural flavors are free from common allergens, GMO-free, and Kosher. We’ve been in business for nearly 25 years sourcing the best natural ingredients while avoiding anything artificial or highly processed. As with all our products, If there is a specific ingredient you’re concerned about, please let us know and we’ll do our best to address your questions!