What is Alumina?

Alumina is a homeopathic remedy made from aluminium oxide, also known as pure clay. Its Latin name is Aluminii oxidum (Argilla). It is a single drug remedy, given most often for long-term constipation with no urge to go, very dry skin, and dryness of the mouth and eyes.

Alumina is made by serial dilution. The starting powder is ground with milk sugar, then diluted over and over, with hard shaking at each step. At the common 30C strength, essentially none of the original aluminium oxide is left.

The honest verdict: Alumina has a long record of use inside homeopathy, but trials do not separate homeopathic remedies from placebo (a dummy pill). Traditional use is not proof that something works, and we say that once here rather than in every section below.

How does Alumina work?

There is no accepted explanation for how Alumina could work, because at 30C there is no measurable aluminium oxide in the pill.

Homeopathy teaches that repeated dilution and shaking leaves an "imprint" of the starting substance, and that this imprint can prompt the body to correct symptoms that the raw substance would cause. Chemistry and physics do not support that idea, and no test has shown such an imprint exists.

What you can expect is a placebo response. That is real and can feel helpful, but it comes from expectation, attention and time, not from the remedy itself.

What forms does Alumina come in?

Alumina comes in a small number of standard forms.

Common forms: sugar pellets or tablets that you let melt under the tongue; liquid drops in a water and alcohol base; and lactose (milk sugar) powders in single-dose paper folds.

Strengths are labelled 6C, 12C, 30C or 200C. 30C is the strength most often sold over the counter.

Where it comes from:

Alumina was written up by Samuel Hahnemann, the German doctor who founded homeopathy, in his Chronic Diseases in the 1820s and 1830s.

It entered homeopathic practice through "provings", where healthy volunteers took the substance and wrote down every symptom they noticed. Those symptom lists, not trials, are what shaped its traditional use.

It has stayed in homeopathic textbooks and kits ever since, making it a long-standing staple of that one tradition.

What does Alumina help with?

• Long-term constipation with no urge to pass stool: This is the picture homeopaths link most closely to Alumina: stool that is soft yet still hard to pass, with no urge for days. The link comes from old symptom records, not from trials. No published human trial has tested Alumina for constipation.
• Very dry, itchy, cracked skin: Homeopathic texts describe skin that is dry, rough and itchy, and worse in winter. This use rests on tradition alone. Plain moisturiser has good evidence behind it and is the sensible first step.
• Dryness of the mouth, nose and eyes: Traditional descriptions include a dry mouth and dry, gritty eyes. There is no trial evidence that Alumina changes these symptoms. Lasting dryness can point to a medical cause worth checking.
• Numbness and tingling in the hands or feet: Old provings list numbness, tingling and a heavy, unsteady feeling in the legs. No human study supports using Alumina for this. New or spreading numbness needs a doctor, not a remedy.
• Confusion or low mood in older people: Homeopaths have long used Alumina for slow thinking and dullness in older people. This is a traditional picture with no trial support at all. Memory change in an older adult should always be assessed by a doctor.

Which foods are rich in Alumina?

1. Tea leaves: take up small amounts of aluminium from soil
2. Baked goods made with aluminium baking powder: a common food source
3. Some processed cheese slices: may contain aluminium additives

Practical Tips:

These foods relate to aluminium itself, not to the 30C remedy, which contains none.

What are the side effects of Alumina?

• No physical side effects expected at 30C, because no source material remains
• A short flare of symptoms that some homeopaths call an aggravation
• Stomach upset or wind in people who react badly to lactose (milk sugar) pellets
• Rare allergic reaction to a pellet ingredient, such as rash or itching
• Choking risk if pellets are given to a very young child

Good to know:

Direct harm from a 30C remedy is very unlikely. The pellets are mostly sugar, so the main real-world risks are lactose (milk sugar) upset and a rare allergy to an ingredient.

The bigger risk is indirect. If you use Alumina in place of treatment that works, a treatable problem can get worse while you wait.

How much Alumina should you take?

• Recommended daily: There is no scientifically established dose, because there is no measurable active substance to dose. Typical practice on a 30C label is 3 to 5 pellets under the tongue, up to three times a day. Some homeopaths give a single dose and then wait. Follow the label on the pack you bought.
• Best time of day: Any time of day. Many labels suggest away from strong flavours such as coffee, mint toothpaste or menthol, which is a traditional custom rather than a tested rule.
• With or without food: Usually taken about 15 minutes before or after food or drink, so the pellet melts cleanly under the tongue. This is custom, not a proven need.
• Time to effect: No reliable time frame can be given. Any change people report usually comes within a few days and is best explained by placebo, natural recovery or other treatments.
• How long to take it: Homeopaths usually suggest stopping once symptoms settle, or reviewing after about two weeks if nothing changes. Do not keep taking it for months in place of care for a problem that is not improving. Constipation, dryness or numbness that lasts more than two weeks deserves a proper look from a doctor.