Ceylon cinnamon is available for purchase online from Amazon and The Spice House and in store from Whole Foods Market. Ceylon is known as "true cinnamon" and has a more subtle flavor than commonly used cinnamon.
Amazon offers a choice from organic, gluten free and fair trade Ceylon cinnamon varieties and also allows for narrowing of the search by brand and nutrition facts. The Spice House offers both whole and ground options in several container sizes. Whole Foods Market sells organic Ceylon cinnamon in their stores, and this variety is also kosher and safe for vegetarian, vegan and dairy-free diets.