Korean Slippery Elm Bark | Dried Ulmus davidiana | 3.5 oz

Kosbee Korean Slippery Elm Bark is 100% pure dried yugeunpi — the Korean species Ulmus davidiana (유근피) — grown in Korea, with no additives, in whole root-bark form rather than powder, so you can simmer it the traditional way into a smooth, silky tea.

Simmered low and slow, the bark releases a distinctively smooth, silky, slightly slippery texture — the very trait that gives slippery elm its name — over a mild, woody flavor. Each resealable pouch holds 3.5 oz (100 g).

In Korea, yugeunpi — the bark of the elm root — has been a long-trusted ingredient, traditionally simmered low and slow until the water turns smooth and silky. Kosbee selects clean Korean-grown bark and keeps it whole, not powdered, so you can brew it the time-honored way at home.

Korean Ulmus davidiana, Not Powdered Rubra

Most slippery elm in North America is American Ulmus rubra, sold as a powder or capsule. Kosbee uses the Korean species, Ulmus davidiana, in its whole root-bark form, so you can decoct it traditionally instead of stirring in a scoop.

It is a Product of Korea with a clear origin, cleaned and ready to simmer.

What's in the Pouch

100% Korean Slippery Elm Bark (Yugeunpi / 유근피, Ulmus davidiana)

Pure dried root bark grown in Korea, with no additives.

Whole Bark, Not Powder

The original root-bark form, so you can decoct it traditionally instead of stirring in a powder.

Smooth, Silky Brew

Simmered long, it releases a distinctively smooth, slightly slippery, silky texture.

Caffeine-Free, Clean Label

0 additives or preservatives; naturally contains calcium (4% DV), potassium (5% DV), and iron (6% DV) per serving.

The 3.5 oz (100 g) pouch makes about 10 servings (1/4 cup / 10 g each).

How to Brew Korean Slippery Elm Bark

Rinse the bark briefly, then add 0.35 oz (about 10 g) to 1 to 1.5 quarts (1 to 1.5 liters) of water; bring to a boil, then simmer on low for 30 to 40 minutes.

As it simmers, the bark releases its signature smooth, silky texture — sip it warm like a tea throughout the day.

Some people also brew a strong batch, let it cool, and use the liquid as a face rinse or in DIY skincare.

How to Enjoy It Safely

Because the brew is thick and silky, it's best to drink it a couple of hours apart from any medication; if you take prescription medicine, check with your doctor.

If you are pregnant or nursing, talk to your doctor before drinking it regularly.

It is 100% Ulmus davidiana bark, so if you are sensitive to tree barks, do a small patch or taste test first and check the label.

Common Questions About Yugeunpi

Is this Korean Ulmus davidiana, not American slippery elm?

Yes. Kosbee Korean Slippery Elm Bark is yugeunpi — the Korean species Ulmus davidiana — grown in Korea, in whole root-bark form with no additives. Most slippery elm sold in North America is powdered American Ulmus rubra. It's packed in a resealable pouch and shipped from our New Jersey warehouse.

How do I make slippery elm bark tea?

Rinse the bark briefly, then simmer 0.35 oz (about 10 g) in 1 to 1.5 quarts (1 to 1.5 liters) of water — bring to a boil, then keep it on low for 30 to 40 minutes. As it simmers it turns smooth and silky; sip it warm throughout the day.

Is there anything to know before using it?

Because the brew is thick and silky, drink it a couple of hours apart from any medication, and check with your doctor if you take prescription medicine. If you are sensitive to tree barks, do a small test first. If you are pregnant or nursing, talk to your doctor before regular use.

How is it different from slippery elm powder?

Most slippery elm online is powdered American Ulmus rubra in a scoop or capsule. Kosbee offers the whole Korean root bark, Ulmus davidiana, so you can simmer it the traditional way for a smooth, silky brew — clean, single-ingredient, and clearly a Product of Korea.

Bring This Korean Bark Home

Want whole Korean slippery elm bark for a smooth, traditional brew? Explore More Korean Herbs at Kosbee. Sourced by Kosbee and shipped from our New Jersey warehouse within 1 business day.

*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.