What is yugino?

Yugino is a dried herb used in Korean herbal medicine. It comes from the plant Artemisia anomala. It is also called anomalous wormwood herb.

It is a single herb, not a blend of several. Healers gave it for bruises, falls, sore joints and painful periods. Shops sell the dried stems, leaves and flower tops, cut for boiling.

Here is the short verdict. Yugino has a long record of use in Korea. But there are almost no human trials, so a long record of use is not proof that it works.

How does yugino work?

The honest answer is that nobody knows how yugino works in people.

Old Korean and Chinese texts say it "moves the blood" and "breaks up stasis" (stuck blood). That is an old way of talking, not a lab finding. In plain words, it was used to clear bruises and ease cramping pain.

Modern work on the plant is early and mostly in test tubes and animals. Some of its compounds slow swelling and calm immune signals. Some also seem to slow the way blood cells clump together.

None of that has been shown in humans. Until it is, treat the way it works as unknown.

What forms does yugino come in?

Yugino is most often sold as a dried, cut herb. You boil it in water to make a decoction, which is a strong tea made by simmering.

You may also see it as a powder, as granules that melt in hot water, or as a tincture in alcohol.

In Korean and Chinese practice it often appears inside a mixed formula rather than on its own. Healers also mashed the fresh or soaked herb into a paste and laid it on bruises and small wounds.

Where it comes from:

Yugino is the Korean name for a herb long shared with Chinese medicine, where it is called liu ji nu.

It shows up in East Asian herb books from about the 7th century onward. Tradition links the name to a general who used the plant on battle wounds, though that is a story, not a record.

In Korea it settled into use as a blood-moving herb for injury, bruising and period pain.

What does yugino help with?

• Bruises and minor injury from falls or knocks: This is the main traditional use. Korean and Chinese healers boiled the herb or laid it on the skin to clear bruising and ease pain after a knock. No human trial has tested this, so the claim rests on tradition alone.
• Painful periods: Tradition used yugino for cramping period pain, often inside a mixed formula. Lab work hints at anti-swelling effects, but that is a long way from pain relief in a real person. There are no human trials to point to.
• Late or missing periods: Old texts list yugino for periods that are late, scant or have stopped. This same action is why it is banned in pregnancy. No trial has measured what it does to the menstrual cycle.
• Belly pain after childbirth: Traditional use included belly pain and slow recovery after birth. This is an old practice, not a tested one. If you are breastfeeding, skip it, since we do not know what passes into milk.
• Minor cuts and grazes (used on the skin): The mashed herb was laid on small wounds to slow bleeding and help them close. Clean water, pressure and a dressing are the proven steps. See a doctor for any deep, dirty or heavily bleeding wound.
• Bloating and slow digestion: Some texts list yugino for a full, bloated belly. This is a minor traditional use with no human evidence behind it. New or lasting belly trouble needs a doctor, not a herb.

Which foods are rich in yugino?

Do not treat it as a kitchen herb or a tea to drink daily.

What are the side effects of yugino?

• Upset stomach or nausea
• Loose stools
• Dry mouth and a strong bitter taste
• Skin rash or itching, mainly in people allergic to mugwort or ragweed
• Easier bruising or bleeding
• Heavier than usual period bleeding

Good to know:

We do not know how common these are, because no trial has counted them. What is listed here comes from traditional reports and from what is known about related wormwood plants.

Stomach upset is the complaint most often mentioned. The bleeding-related effects matter most, so stop the herb and speak to a doctor if you see them.

How much yugino should you take?

• Recommended daily: No safe or useful dose has been set by trials. In traditional Korean and Chinese practice, healers used about 6 to 15 g of the dried herb a day. They simmered it in water and split the liquid across two or three cups. For use on the skin, a paste of the soaked herb was laid over the bruise. Since strength varies a lot between batches, work with a trained Korean medicine practitioner rather than guessing.
• Best time of day: Split the daily amount between morning and evening. For period pain, tradition started it a day or two before the period was due.
• With or without food: Take it with or just after food. The herb is bitter and can upset an empty stomach.
• Time to effect: Unknown, because it has not been measured in people. Traditional use expected a few days to a couple of weeks.
• How long to take it: Short courses only. Tradition used it for days or a few weeks around an injury or a period, not every day for months. Stop and rethink after two weeks if nothing has changed. Stop at once if you notice easy bruising, heavier bleeding or a rash.