Unani & Herbal, Decoded

Amaltas Benefits: Khiyar Shambar Laxative, Grey Hair Myth, Limits

Amaltas (the golden shower tree) is the tree that drips yellow flowers over Lahore and Delhi roads in May, and its long black pods (amaltas ki phali) hold one of the oldest laxatives in Unani medicine, khiyar shambar. Amaltas benefits are real but narrow: the pulp is a stimulant laxative for occasional constipation. It isn’t a daily tonic, it isn’t for children without advice, and it won’t turn grey hair black.

Before you start

  • Botanical name: Cassia fistula. Unani name for the pulp: khiyar shambar (also khiyar shambari).
  • The useful part: the pulp.
  • How it works: anthraquinones, the same family of bowel-stimulating compounds found in senna.
  • Fair use: occasional constipation in adults, for a few days only.
  • Not for: regular use, children (unless a doctor advises), pregnancy, or belly pain you can’t explain.

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What is amaltas, and how do you spot the tree?

From late April into June, amaltas is impossible to miss, because bunches of bright yellow flowers hang down in long chains, up to 40 cm, like yellow chandeliers over the hottest roads of the year, and that’s where the names “golden shower” and “Indian laburnum” come from. Look up in May.

The pods come later. They’re hard, round, dark brown to black sticks, often 30 to 60 cm long, and they rattle when shaken. Crack one open and you’ll find it divided into many small chambers, each holding a flat seed in a coat of sticky, sweet-smelling, almost tar-like pulp. That pulp is khiyar shambar.

Did you know?

  • Amaltas is the national tree of Thailand, where its yellow is linked with royalty and Buddhism.
  • In Kerala it’s called kani konna, and its flowers are a must for the Vishu new year festival in April.

Is amaltas the same as gulmohar or laburnum?

No to both. Gulmohar (Delonix regia) has scarlet-orange flowers that stand up on the branches and long flat pods, and it blooms in the same weeks, which is why the two are mixed up so often in photos and in conversation. True laburnum (Laburnum anagyroides) is a European garden tree with similar-looking yellow chains, but every part of it is poisonous. Only the name is shared.

What people say about amaltas

Search “amaltas ke fayde” and you’ll get a long list: constipation, cough, skin disease, weight loss, fever, periods, and, most of all lately, “amaltas for grey hair” and “amaltas hair dye”. Some videos promise that boiling pods into a paste will turn white hair black naturally.

How it was used

Unani hakeems prized khiyar shambar as a gentle purgative (mulayyin, a softener of the bowel), suitable even for delicate people in the old texts, and used it for constipation, “heat” and to clear the bowel before other treatment. It’s a key ingredient in laooq sapistan khiyar shambari, the classic cough linctus. Ayurveda calls the tree aragvadha (“disease-killer”) and uses the pulp as a mild laxative and the leaves in skin pastes.

Our honest take: what is amaltas actually good for?

  • Constipation, occasionally: Depends. The pulp genuinely works as a stimulant laxative because of its anthraquinones, and although it’s milder than senna it’s the same kind of action, pushing the bowel to contract and pulling water into it, which is fine for an adult with occasional hard stools for a few days and not much beyond that.
  • Cough: as part of a sweet linctus, the thick pulp may soothe a scratchy throat. It has its own guide: laooq sapistan khiyar shambari for cough.
  • Weight loss: Skip. Laxatives empty the bowel and lose water. That isn’t fat, and using laxatives to lose weight is dangerous.
  • Grey hair and hair dye: Skip. Amaltas pulp doesn’t contain a lasting hair dye. A dark sticky paste may stain hair slightly for a wash or two, but it doesn’t change grey hair’s colour from the root and no plant reverses greying, so if you want plant colour that really works, henna and indigo are the two that do.
A laxative that works well is exactly the kind you shouldn’t use every day.

Why amaltas shouldn’t be taken regularly

Stimulant laxatives, natural or not, carry the same problems with regular use:

  1. Cramps and loose motions: the most common effect, especially with a strong batch. Pods vary a lot in strength.
  2. Dehydration and salt loss: watery stools take water, potassium and sodium with them. Low potassium can cause weakness, muscle cramps and heart rhythm problems, and it’s riskier in older people and anyone on water tablets or heart medicine.
  3. A lazy bowel feeling: many people who use stimulant laxatives for weeks find it hard to go without them. Doctors usually advise no more than about 7 days without a check.
  4. Hiding a real problem: new constipation in an adult over 40, or with blood or weight loss, needs a doctor, not a pod.

The first-line fixes for ongoing constipation are boring and effective: more fibre, more water, daily movement, and not ignoring the urge. Our guides to qabz home remedies and how to take isabgol cover the gentler route. For senna, the stronger cousin, see sana makki and safe use.

Amaltas for babies and children

“Amaltas for babies” and “amaltas ke fayde bacho ke liye” are common searches, because older relatives sometimes give a lick of pulp for a constipated child. Please don’t. Not unless a doctor has told you to. Children dehydrate fast, laxative strength in a pod is unpredictable, and a constipated baby can have a cause that needs a check (especially under 6 months, or with vomiting, a swollen belly, or blood). Our child constipation by age guide lists safe steps.

How is amaltas pulp used, and how much?

We don’t give amounts for khiyar shambar. It’s a laxative medicine, and pods vary in strength, so the pack of a prepared product, a pharmacist or a qualified hakeem should set the amount. What we can say:

  • Traditionally, pulp is soaked in warm water, mashed, strained and taken at night, often with something sweet. Seeds and pod shell aren’t eaten.
  • Expect an effect within 6 to 12 hours. If nothing happens after 2 or 3 days of use, stop and ask a doctor rather than taking more.
  • Stop at once if you get severe cramps, vomiting, dizziness, or more than three watery stools a day, and drink ORS or water with salt and sugar.

How to buy and store amaltas pods

At a pansar, pick heavy pods that rattle little, since a light, loud pod may be dry and old inside, and when you see the pulp it should be dark brown, sticky and sweet-smelling, never hard, crumbly, mouldy or sour like old tamarind. Pre-scraped pulp? Convenient, but unseen. Store whole pods in a dry, cool place for up to a year; scraped pulp in a sealed jar in the fridge for a few weeks. Throw anything with white fuzz or a sour smell.

Myth: amaltas is safe because it’s mild

“Mild” in the old books meant mild compared with the harsh purgatives of the time. It’s still a stimulant laxative. Mild laxatives used often cause the same salt loss and dependence as strong ones, just more slowly.

Myth: amaltas flowers and leaves can be eaten freely

In parts of India, the flowers are occasionally cooked as a vegetable, and leaf pastes go on skin. These traditional uses exist. That doesn’t make the leaves or seeds a casual snack, though, because the seeds are not eaten at all and any part of the tree, taken in quantity, can cause loose motions and cramps.

When to see a doctor

Don’t use amaltas in pregnancy (stimulant laxatives can trigger cramps) or while breastfeeding without advice, and don’t give it to children unless a doctor says so. Avoid it with inflammatory bowel disease, a known bowel blockage, kidney disease, or if you take water tablets, digoxin or heart rhythm medicine. Get help the same day for constipation with severe belly pain, vomiting, a swollen belly, or no wind passing. See a doctor soon for blood in stool, black stools, weight loss, or new constipation after 40 lasting more than 3 weeks. More honest herb reviews are in Unani & Herbal, Decoded.

What are amaltas benefits?

The real benefit is a laxative effect from the pod pulp (khiyar shambar), useful for occasional constipation in adults. It’s also an ingredient in traditional cough linctus. Claims about weight loss, grey hair, skin disease and fever aren’t supported.

Is amaltas good for constipation?

Yes, for occasional use. The pulp contains anthraquinones that stimulate the bowel, like a gentler senna. Don’t use it for more than a few days, and see a doctor if constipation keeps coming back.

Does amaltas work for grey hair?

No. Amaltas has no lasting dye in it and can’t reverse grey hair, although a dark paste may tint hair briefly before it washes out, so for real plant colour, henna and indigo are the options that work.

Is amaltas fruit edible?

The pulp is used as a laxative medicine, not eaten as a fruit. The seeds and hard shell aren’t eaten. Eating pulp casually can cause cramps and diarrhoea.

Amaltas ki phali ke fayde kya hain?

Amaltas ki phali (the pod) holds the pulp that works as a laxative and goes into Unani cough preparations. That’s its main proven use. Hakeems use it for “heat” and to soften the bowel, which is tradition.

Is amaltas safe for babies?

Not without a doctor’s advice. Babies and young children dehydrate quickly and a pod’s strength is unpredictable, which together make guessing a dose at home a real gamble with a small body that has very little reserve. A constipated baby under 6 months, or one with vomiting or a swollen belly, needs a doctor.

Can I take amaltas in pregnancy?

No, because stimulant laxatives can set off cramps, and they’re generally avoided in pregnancy. Ask your doctor for pregnancy-safe constipation help; fibre, fluids and certain gentle laxatives are usually advised first.

What are amaltas side effects?

Cramps, loose motions, nausea and, with repeated use, dehydration and low potassium, and using it for weeks can make the bowel feel dependent on it. Older people are most at risk. So are those on heart medicine or water tablets.

Is amaltas and gulmohar the same tree?

No. Amaltas has hanging yellow flower chains and long round black pods, while gulmohar has upright scarlet-orange flowers and long flat pods. Same season. Different trees.

Is amaltas good for weight loss?

No. What’s lost is stool and water, and it comes straight back with your next meal and your next few glasses of water. Using laxatives for weight loss can cause dangerous salt imbalances and harm the bowel.

Is amaltas good for skin?

Not really. Leaf pastes are traditional, with little evidence behind them. If you try a leaf paste, patch test 48 hours first and never apply it to broken skin. Persistent rashes or skin infections need a doctor.

How to use amaltas for constipation?

Traditionally, the pulp is soaked in warm water, mashed, strained and taken at night. The amount should come from a pack, a pharmacist or a qualified hakeem, since pods vary in strength. Use it for a few days only.

Is amaltas good for cough?

It’s part of laooq sapistan khiyar shambari, a traditional cough linctus, where the sticky pulp soothes the throat. It doesn’t stop the cause. A cough over 3 weeks, with blood, fever over 3 days, or breathlessness needs a doctor.

Nothing on The Care Online is medical advice. Traditional practices are described as tradition, not as fact. Patch-test anything new, and take a persistent or serious concern to a qualified professional. See how posts are written on our methodology page.