Pure Encapsulations Heartburn EssentialsPure Encapsulations Heartburn Essentials This digestive support formula by Pure Encapsulations may help soothe occasional stomach acidity, restore balance to your digestive tract, and help maintain balanced gastric secretions.* Gamma oryzanol, one of the main components of Pure Encapsulations Heartburn Essentials, interacts with the autonomic nervous system to help regulate different digestive processes, which in turn may create a soothing sensation