The Organic Flavors used in Yogi teas are made from organic natural sources such as spices, fruits, herbs and roots, and do not contain nor are they processed with any artificial ingredients or synthetic materials. They’re also vegan, gluten free, non-GMO and don’t contain any MSG. Further, they are free of the nine FDA recognized allergens and therefore don’t contain tree nuts, peanuts, sesame, milk, eggs, fish, crustacean shellfish, wheat, or soybeans.