What is Borax?

Borax is a homeopathic single remedy made from sodium borate, a mineral salt. Its Latin name is Natrum boracicum (Sodii biboras). You may also see it sold simply as Borax or sodium borate.

Homeopaths reach for it most often for sore mouth ulcers and for oral thrush (a white fungal coating in the mouth). It is also a traditional pick for babies who startle or cry when laid down, and for travel sickness.

Here is the honest verdict up front. The remedy is serially diluted, meaning the starting material is thinned and shaken again and again. At 30C essentially none of the original borax is left in the pellet.

Trials do not separate homeopathic remedies from placebo (a dummy treatment with no active ingredient). Long use inside a tradition is not proof that something works, and that is true of every remedy in this library.

This page covers the diluted remedy only. Raw borax powder from a shop, craft kit or laundry aisle is a different thing and is poisonous if swallowed.

How does Borax work?

There is no accepted explanation for how a 30C remedy could act in the body. Chemistry says no borax remains at that dilution. So any effect cannot come from the mineral itself.

Homeopathy teaches that shaking and diluting leaves behind a "pattern" or energy that the body responds to. This idea has not been shown to be real in the laboratory. Treat it as a belief within the tradition, not a proven mechanism.

What we can say is more down to earth. Taking something, resting, and expecting to feel better can change how you rate your own symptoms. Many mouth ulcers and mild bouts of nausea also settle on their own within days.

Low strengths such as 1X to 6X are a separate case. These can still hold measurable borax, and real borax does have effects on the body — mostly unwanted ones.

What forms does Borax come in?

Sugar pellets are the most common form. They are small, sweet and dissolve under the tongue.

Liquid drops are the other main option. Most are made with alcohol, which matters for children and for anyone avoiding alcohol.

You will also see tablets, granules for babies, and creams or gels in some countries. Strengths are labelled 6X, 12C, 30C and higher. A bigger number means more dilute, not stronger in the drug sense.

Do not confuse any of this with borax powder sold for cleaning, slime kits or pest control. That is raw, undiluted and unsafe to eat.

Where it comes from:

Borax the mineral has been used for thousands of years for glazing, soldering and preserving. It came into Europe along trade routes from Tibet and Persia.

Samuel Hahnemann, the founder of homeopathy, tested it on healthy volunteers in the early 1800s. He published the results in his book The Chronic Diseases. Those notes are where the mouth ulcer, thrush and fear-of-downward-motion picture comes from.

It has stayed a familiar remedy in homeopathic practice ever since, especially in children's prescribing. That gives it a solid place in one tradition.

What does Borax help with?

• Mouth ulcers (small painful sores inside the mouth): This is the classic Borax picture in homeopathy. The remedy was chosen for sores that sting when you eat something sour or salty. No human trial has tested homeopathic Borax for mouth ulcers. Most simple ulcers heal on their own in one to two weeks.
• Oral thrush (a white fungal coating in the mouth): Homeopaths have long used Borax for white patches in a baby's mouth. There is no trial evidence behind this. Thrush is caused by a yeast and usually needs an antifungal (a medicine that kills yeast) from a doctor or pharmacist.
• Travel sickness and nausea from motion: Tradition links Borax to a fear of downward movement, such as swings, lifts or landing in a plane. From that came its use for travel sickness. No published human trial supports it. Proven options include ginger, acupressure bands and standard travel sickness pills.
• Babies who startle or cry when laid down or carried downstairs: This is a symptom picture from Hahnemann's original notes, not a diagnosis. There is no trial evidence. A baby who cries a lot or feeds poorly should be checked by a doctor rather than treated at home.
• Vaginal discharge: Older homeopathic texts list Borax for a thick, warm, egg-white type discharge. No human trial has looked at this. New or smelly discharge, itching or pain needs a proper check, since infections need real treatment.

Which foods are rich in Borax?

1. Raisins and prunes: dried fruit is among the richest food sources of boron
2. Almonds and hazelnuts: nuts carry useful amounts of boron
3. Avocado: one of the higher boron fruits
4. Apples and pears: modest but steady sources
5. Dried beans and lentils: plant foods in general supply most dietary boron

Practical Tips:

Boron from food is not the same thing as the remedy, and eating these foods is safe and normal.

What are the side effects of Borax?

• None at all in most people taking 30C, since no borax remains
• Wind, bloating or loose stools from the lactose (milk sugar) in pellets, if you cannot handle milk sugar
• Stinging in the mouth from the alcohol in liquid drops
• A short flare of symptoms that homeopaths call an aggravation, which has not been shown to be a real drug effect
• Nausea, vomiting or stomach pain if a low strength containing real borax is taken
• Delay in getting treatment that would actually help: the most common real harm

Good to know:

Direct side effects from a 30C pellet are very unlikely. The pellet is mostly sugar, so it is the sugar, not the borax, that could bother you.

The picture changes with raw borax or very low strengths. Real borax can irritate the gut, strain the kidneys (the organs that filter your blood), and in large amounts cause seizures (fits). Swallowing cleaning-grade borax powder has caused serious poisoning and deaths, especially in young children.

The bigger everyday risk is using this instead of care that works. Thrush, a lasting mouth sore or ongoing vomiting all need a proper look.

How much Borax should you take?

• Recommended daily: There is no official dose, because no health body has set one. Homeopathic products are not dosed by weight or strength the way medicines are. In common practice, people take 3 to 5 pellets of 30C under the tongue. Some take it up to three times a day for a short spell. Follow the label on the pack you buy. Stick to high dilutions such as 30C. Low strengths like 1X to 6X can still hold real borax and are not for self-treatment. A bigger number on the label means more dilute, not more powerful.
• Best time of day: Any time of day. For travel sickness, the usual custom is one dose shortly before you set off. Homeopaths often suggest spacing doses evenly through the day, though this is custom rather than tested practice.
• With or without food: The tradition says to take pellets between meals, about 15 minutes away from food, drink, toothpaste or strong mints. This is a rule of the tradition, not something proven by testing. It will not harm you to follow it.
• Time to effect: No reliable timing can be given, because the remedy has not been shown to work better than placebo. Homeopaths often say to expect a change within a few doses. If you notice nothing after about three days, stop.
• How long to take it: Keep it short. A few days is plenty for a mouth ulcer or a bout of travel sickness. If nothing has changed after about three days, stop and rethink. There is no reason to keep taking something that is not helping. Never let it replace or delay care for an infection, a fever, or a sore that will not heal.