Slippery Elm Bark (Ulmus rubra)

Dried inner bark of Ulmus rubra, Slippery Elm, a tree native to eastern North America. The inner bark contains substantial mucilage and has been used by Native peoples of the region for centuries as a demulcent for throat and digestive comfort, as a poultice ingredient, and as a survival food (the "slippery" gel was a famine food in Appalachian and Native American traditions).

Key Facts

Botanical name

Ulmus rubra

Family

Ulmaceae (elm family)

Common names

Slippery Elm, Red Elm, Indian Elm

Native region

Eastern North America

Part used

Inner bark (cambium layer)

Primary compound class

Mucilage (long-chain polysaccharides)

Traditional uses

Throat lozenges, digestive demulcent, poultice for skin irritation

What is Slippery Elm Bark?

Slippery Elm is a medium-sized tree found across the eastern United States and Canada. The inner bark (the cambium layer just under the outer bark) is rich in mucilage - long-chain polysaccharides that form a soothing slippery gel when extracted in water. The bark has been used by Native American peoples for centuries; the species came under pressure from Dutch elm disease in the 20th century, making sustainable harvest important.

How to Use Slippery Elm Bark

For demulcent tea: stir 1 teaspoon of cut bark into hot water and steep for 10 minutes. The result is slippery and slightly sweet. For lozenge or paste preparation, mix powder with a small amount of water to form a paste. Slippery Elm is also a base ingredient in many throat lozenges.

Frequently Asked Questions

What is Slippery Elm used for?
Throat and digestive comfort, particularly for irritated or inflamed tissues. One of the classic Western demulcents.

What does "slippery" mean here?
The bark produces a slippery mucilaginous gel when wet. The slipperiness is the soothing demulcent action.

Is Slippery Elm endangered?
The species has been pressured by Dutch elm disease. Sustainable sourcing is important; we work with suppliers practicing responsible harvest.

Can I take Slippery Elm with medications?
Slippery Elm's mucilage can slow absorption of other medications. Take medications 1-2 hours before or after slippery elm.

How is Slippery Elm different from Marshmallow Root?
Both are demulcent herbs; Slippery Elm comes from a North American tree bark; Marshmallow from a European root.

Is Slippery Elm safe during pregnancy?
Generally considered safe; consult a healthcare provider.

This product has not been approved by the Food and Drug Administration and is not intended to diagnose, treat, cure, or prevent any disease. We recommend that you consult with a qualified healthcare practitioner before using any herbal products, particularly if you are pregnant, nursing, or on any medications.