Bonvit Slippery Elm Bark Powder contains mucilage, a gel- substance which creates a film over mucus membranes. Antioxidants also found in the slippery elm, helps to lessen inflammation and relieve minor pain or discomfort, to sooth irritated or inflamed skin or tissue. A common remedy with a soothing action on all mucous membranes, including the digestive tract, urinary tract, respiratory system and soothes the skin on contact. 100 Percent natural dietary fibre source, non-GMO, gluten free and has no preservatives.