What is Alpine lady's mantle?

Alpine lady's mantle is a small mountain herb used in Nordic folk medicine. The leaves are cut like a fan, with silky silver hairs on the underside. In Iceland it is called ljónslappi, which means lion's paw.

It grows on high ground in Iceland, Norway, Sweden, Scotland and the Alps. Country healers dried the leaves for tea. They also used fresh leaves as a wash for grazes and sore skin.

It is a close cousin of common lady's mantle (Alchemilla vulgaris). Most products sold as lady's mantle are the common plant, not this one. The two are often mixed up on labels.

Here is the honest verdict on evidence. Almost no human studies have been done on this plant. Folk use is old and well recorded, but age of use is not proof that something works, and it is not proof that it is safe.

How does Alpine lady's mantle work?

The main idea behind its old uses is astringency, a drying and tightening action on tissue.

The leaves are rich in tannins. These are plant compounds that stick to proteins. In test tubes, tannins bind proteins and make surface tissue feel tighter and drier.

That is the thinking behind the old use on grazes, mouth sores and loose stools. The idea is sound in the lab. Whether it does much on real skin or in the gut has not been tested properly.

Lab work on Alchemilla extracts also shows antioxidant activity. That means the extract mops up free radicals, which are unstable particles that can damage cells. A test-tube result like this does not tell you what happens inside a person.

Some test-tube studies show the extract slowing the growth of certain bacteria. This has not been shown to work on human skin or in a wound.

For period problems, no mechanism is known. The plant has no proven hormone-like action in people. Claims that it balances hormones are not supported by human data.

What forms does Alpine lady's mantle come in?

It is most often sold or used as a dried leaf, loose or in tea bags.

Common forms: - Dried leaf for tea or infusion - Alcohol tincture, in a dropper bottle - Capsules of powdered leaf, less common - Skin washes and compresses made from the cooled tea - Cosmetic creams and toners listing Alchemilla extract

Two things are worth checking on the label. First, many products say lady's mantle but contain Alchemilla vulgaris, the lowland plant. Second, wild-picked mountain herb is sometimes sold with no testing for strength or purity.

There is no capsule or extract of this species with a tested, standard dose.

Where it comes from:

Alpine lady's mantle has a long place in Nordic and alpine country medicine, going back several hundred years.

Icelandic and Norwegian folk records describe the dried leaf as a tea for loose bowels. Healers also used the cooled tea as a wash for cuts, chapped skin and sore mouths.

It was treated as a women's herb across much of Europe. Old herbals linked it to heavy or painful periods and to recovery after childbirth. Those were claims of the time, not tested findings.

The name lady's mantle comes from the cloak-like shape of the leaf. Early alchemists collected the dew that gathers in the leaf's centre, which is where the name Alchemilla comes from.

In the Nordic uplands it was also simply good sheep grazing. None of this history tells you whether the plant helps a modern reader, and this page does not suggest treating yourself with it.

What does Alpine lady's mantle help with?

• Short bouts of diarrhoea: This is the best-known folk use. Tannins bind proteins in test tubes, which is the reason behind the old idea that the tea firms up loose stools. No human trial has tested alpine lady's mantle for diarrhoea. Other tannin-rich teas have been used this way for a long time, but that is not proof for this plant.
• Heavy or painful periods: Old European and Nordic herbals named it a women's herb for heavy bleeding. This claim is repeated widely online. There is no human trial behind it. No hormone-like action has been shown in people. Heavy periods can signal fibroids, clotting problems or thyroid disease, so this is a symptom to have checked.
• Mouth ulcers and sore throat, as a rinse or gargle: The dry, puckering taste of the tea is the astringent effect you can feel. Folk use was as a mouth rinse for ulcers and sore gums. A small trial of a gel made from common lady's mantle, a different species, reported faster healing of mouth ulcers. That result does not transfer to tea made from the alpine plant.
• Minor grazes and chapped skin, as a wash: Cooled tea was dabbed on grazes and rough skin in mountain households. Lab tests show Alchemilla extracts slowing some bacteria and helping cells close a wound gap in a dish. Whether that happens on human skin has not been established. Deep, dirty or spreading wounds need medical care, not a herbal wash.
• General digestive upset: The tea was drunk for a heavy or griping stomach. There is no human evidence for this use. Tannins can also irritate the stomach in some people, so the effect may go the other way.

What are the side effects of Alpine lady's mantle?

• Nausea or stomach ache, mainly on an empty stomach
• Dry, puckering mouth
• Constipation with heavy use
• Poorer uptake of iron from food or tablets
• Skin rash or itch, in people allergic to rose-family plants
• Headache, reported rarely

Good to know:

Side effects appear to be mild and uncommon at tea strength. Most reports come from lady's mantle in general, not from this species alone.

No poisoning cases are on record from normal tea use. That is reassuring, but it also reflects how little the plant has been studied.

Stomach upset is the most likely problem. Stop if it happens.

Liver injury from high-tannin herbs is rare but has been reported for some plants. Yellow skin or eyes, dark urine or deep tiredness are reasons to stop and get medical help.

How much Alpine lady's mantle should you take?

• Recommended daily: This page gives no personal dose, because no tested dose exists for this species. For context only: labels on dried lady's mantle tea often suggest about 1 to 2 grams of dried leaf per cup, up to two or three cups a day. Skin washes are usually made from cooled, strained tea. Two warnings about those numbers. They nearly always refer to common lady's mantle, not the alpine plant. And a label figure is a rough guide for a general shopper, not advice for you. If you take medicines or have a long-term illness, ask a pharmacist or doctor before using it.
• Best time of day: Time of day does not matter for this herb. No study supports any particular timing. One practical point: keep it away from your iron tablets, if you take them. Several hours apart is the usual advice for tannin-rich teas.
• With or without food: Tannin teas sit better with or just after food. On an empty stomach they can cause nausea in some people. Do not drink it with an iron-rich meal or an iron tablet if you are treating low iron. Tannins bind iron in test tubes and may cut how much you absorb.
• Time to effect: The dry, tightening feel in the mouth is immediate. That is the taste of tannins, not a sign of healing. For loose stools, folk use expected a change within a day or two. For period or skin claims, no honest timeline can be given. It may also do nothing at all. That is a real possible outcome here, given how thin the human evidence is.
• How long to take it: Folk use was short and occasional, for a few days at a time. No study has looked at long-term use, so no safe long-term window can be named. Tannin-rich teas taken heavily for months have been linked in other plants to poor iron uptake and stomach upset. If a symptom lasts more than a week, that is a reason to get it checked rather than keep taking tea.