Korean Slippery Elm Bark | Ulmus davidiana var | 3.5 oz
What Is Yugeunpi? (Korean Slippery Elm Root Bark)
Yugeunpi (유근피) — known in English as slippery elm bark — is the root bark of the Korean elm tree, treasured for generations in traditional East Asian wellness. Its defining quality is a natural, soothing mucilage — a gentle, gel-like substance released when the bark is simmered, long valued as a "natural protective coating" for the digestive tract.
Kosbee brings you premium 100% Korean-grown slippery elm root bark — pure whole bark, cleaned and ready to brew the traditional way.
Whole Root Bark — Not a Powder or Capsule
In the U.S., slippery elm is almost always sold as a powder or a capsule. Kosbee offers something different: the whole root bark in its natural form. Why does this matter? Slippery elm's prized mucilage is most fully released through traditional simmering (decoction) — the centuries-old Korean method. Brewing whole bark slowly draws out a rich, soothing mucilage that pre-ground powders simply can't match. It's the pure, unprocessed form, exactly as tradition intended.
Korean Ulmus davidiana, Not Ulmus rubra
Most slippery elm in the U.S. market is Ulmus rubra, the American species. Kosbee's product is Ulmus davidiana — the Korean elm species, known as Yugeunpi. Grown in Korea's clean natural environment and carefully selected, it's offered as pure whole bark with no additives, no flavoring, and no preservatives. Each resealable pouch contains 100% pure Korean Ulmus davidiana root bark.
A Naturally Nutrient-Dense, Clean-Label Herb
- Calcium 4% DV (57 mg) per 10 g serving
- Potassium 5% DV (241 mg) per serving
- Iron 6% DV (1 mg) per serving
- Naturally rich in soothing mucilage
- Single ingredient: 100% Korean Ulmus davidiana root bark
- No additives, no flavoring, no preservatives
Traditionally a Soothing Herb for Gut & Throat
In traditional East Asian wellness, slippery elm bark has long been valued for its soothing mucilage.* It has traditionally been used to gently coat and comfort the digestive tract, easing irritation of the digestive lining and helping the stomach feel calm and settled.* The same gentle, coating quality has made it a go-to herb for soothing a dry or uncomfortable throat through dry seasons.*
How to Use Slippery Elm Bark
1. Soothing Daily Tea (Traditional Decoction)
- Rinse the slippery elm slices briefly under running water.
- Add 10 g of bark to 1–1.5 liters of water. Bring to a boil, then reduce to low and simmer for 30–40 minutes.
- Once the bark's signature soothing mucilage has fully infused into the water, strain and sip like a tea throughout the day.
2. DIY Skincare Use
The brewed mucilage-rich liquid can also be cooled and used as a soothing facial rinse or calming mask base — a natural-beauty ritual for those who enjoy DIY skincare. For external use; patch test first.
Who It's For
- Gut-health seekers looking for a natural, soothing herb to keep their stomach feeling calm and comfortable
- K-wellness enthusiasts who trust traditional Korean herbal wisdom and enjoy brewing whole-herb teas the traditional way
- Natural-beauty alchemists who craft their own DIY skincare with clean, chemical-free ingredients
- Anyone seeking a caffeine-free, single-ingredient herbal tea for everyday digestive and throat comfort
Important Safety Information
⚠ Timing with medications. Slippery elm's mucilage may slow the absorption of other medications. Take it at least 1–2 hours before or after any other medication.
⚠ Pregnancy and nursing. Consult a healthcare provider before consuming as an herbal tea.
⚠ Allergy notice. If you have a known allergy to tree bark, test a small amount before regular use. Ingredient: 100% Ulmus davidiana root bark.
⚠ Brew, don't eat. Slippery elm bark is used as a brewing herb. Simmer, strain, and consume only the resulting mucilage-rich tea.
Storage
After use, seal the zipper pouch completely and store in a cool, dry place away from direct sunlight to preserve freshness.
Frequently Asked Questions
Why choose whole bark instead of slippery elm powder?
Slippery elm's prized mucilage is most fully released through traditional simmering of the whole bark — the centuries-old Korean decoction method. Brewing whole bark slowly draws out a richer, more soothing mucilage than pre-ground powder, and it's the pure, unprocessed form with nothing added.
Is this the same as the slippery elm sold in the U.S.?
It's a related but different species. Most U.S. slippery elm is Ulmus rubra, the American elm. Kosbee's product is Ulmus davidiana — the Korean elm species, known as Yugeunpi — grown in Korea's clean natural environment and offered as pure whole root bark.
What does the mucilage do, and what does the tea feel like?
Mucilage is the natural, gel-like substance slippery elm releases when simmered. The brewed tea has a slightly thick, smooth texture. Traditionally, this gentle coating quality is why slippery elm has been used to soothe and comfort both the digestive tract and a dry throat.
Can I take this with my other medications?
Slippery elm's mucilage may slow the absorption of other medications. To be safe, take it at least 1–2 hours before or after any other medication. If you take prescription medication regularly, consult your healthcare provider.
How many cups can I make from one pouch?
One pouch provides about 10 servings at 10 g each, with each serving brewing 1–1.5 liters of tea. That's roughly 10–15 liters of soothing slippery elm tea per pouch — enough for regular daily use over a couple of weeks.
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
