Bonvit Slippery Elm Bark powder is 100% from the inner bark, wild-crafted from the United States and is certified Kosher and Halal. There are no fillers, flavours, preservatives, colours or sweeteners and it is gluten free. Slippery Elm Bark powder contains mucilage, a gel-like substance which creates a film over mucus membranes. Antioxidants also found in the slippery elm may help to reduce inflammation, relieve minor pain or discomfort and soothe irritated or inflamed skin & tissue. A common remedy with a soothing action on all mucous membranes, including the digestive tract, urinary tract, respiratory system and skin.