Boswellia

A tree resin also called frankincense, taken above all for stiff joints.

People take it for

Joint pain and stiffness
Inflammation

A plain-English overview, not advice. Written from published reviews and trials and from what people say in public forums.

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What is boswellia?

Boswellia serrata is a tree whose resin is frankincense. It has been burned as incense in religious and cultural ceremonies for thousands of years, and used for just as long in Ayurvedic and Unani medicine. The active compounds are a group of boswellic acids, and supplements are sold as an extract standardised to a set share of them. It is popular today chiefly among people looking for a plant-based option for joint pain, and a smaller number take it for inflammation more generally.

Why do people take boswellia?

Joint pain and stiffness

The thinking. Stiff, aching knees and hips are what most people reach for boswellia about, often after wanting to avoid the stomach problems that anti-inflammatory tablets can cause. The idea is that the boswellic acids in the resin act on inflammatory pathways in the joint, including a route that ordinary anti-inflammatory tablets do not reach.

What research has found. Several reviews have pooled these trials. The largest analysed seven trials in 545 people and found less pain and stiffness than on a dummy tablet, and two later reviews of nine and eleven trials found much the same. Not every analysis agrees, though: one pooling thirteen trials found no significant difference once every study was combined, although a closer look within it did find a benefit over a dummy tablet. A fair body of trials has looked at this, and most point the same way.

Inflammation

The thinking. Some people take boswellia for inflammation more generally, rather than for one particular joint, on the same idea that its boswellic acids act on the body’s inflammatory pathways. That thinking rests mainly on laboratory and mechanism work, so only a couple of trials have tested it directly against a dummy tablet.

What research has found. The findings so far do not point the same way. In a small trial in healthy volunteers, a single dose raised the amount of pressure needed to cause pain compared with a dummy tablet. In another small trial testing it alone against a placebo over several weeks, it made no clear difference to symptom scores. Studies here point in different directions, so this one is still being worked out; the dose, how long people took it and who took part all seem to matter.

What does boswellia do in the body?

The resin contains a family of boswellic acids, and laboratory work has looked at how these interfere with the chemical signals that switch inflammation on. Two enzymes come up again and again in that work: 5-lipoxygenase, which the body uses to make compounds called leukotrienes, and COX-2, both part of the pathways that drive inflammation and swelling.

The same boswellic acids also appear to act on a protein called NF-κB, which switches many inflammation-related genes on and off, and on the process that wears cartilage away, the cushioning tissue inside a joint. Almost all of this picture comes from cell and laboratory studies rather than from watching what happens inside a joint over time.

What do people say about taking boswellia?

These are anecdotes people have shared, not evidence.

What people like

All the threads read here come from Mumsnet, so these are a small, general-health sample rather than a dedicated boswellia community.
A few people mention taking it for knee or hip joint pain, sometimes as a capsule and once as a balm rubbed on the joint.
One person taking it for ulcerative colitis, rather than a joint, described it as calming; this was a single report, not a wider pattern.

Common complaints

None of the threads read described a side effect or a reason for stopping; most mentions were brief, in passing, rather than detailed reviews.
Nobody said clearly whether it had worked: most posts simply listed it among several supplements without singling out what it did on its own.

How people take it

It usually turns up as one item in a wider stack, alongside fish oil, turmeric, glucosamine or collagen, rather than on its own.
Capsules are the form most people mention, described by one person as fairly large; a balm rubbed on the joint came up once as well.
Joint pain is the reason given most often, though one person took it for a digestive condition instead, alongside a wider list of supplements.

Read from these public discussions:

knee osteoarthritis pain (Mumsnet, 2023)
Rehabbing my knee pain for a year now … ways to stay positive pls (Mumsnet, 2025)
What supplements are you taking? (Mumsnet, 2024)
Ulcerative Colitis and nausea/vomiting? (Mumsnet, 2020)

What forms of boswellia are there?

Form	What’s different	Per serving, on products we list
Boswellia extract	An extract of the resin, standardised to a set percentage of boswellic acids, the compounds studied in trials.	230 mg

What else is worth knowing about boswellia?

Trials lasting up to six months have reported no significant difference in safety outcomes compared with a dummy tablet, including blood tests and vital signs in one 180-day study.
Labels vary in how they state boswellic acid content: some trials used an extract standardised to around 20 per cent of one specific boswellic acid, and label wording elsewhere ranges up to a stated 65 per cent of boswellic acids overall. The figure this site compares products on is the milligrams of extract, not the isolated acid content.
Many joint-care products on the shelf combine boswellia with turmeric or curcumin rather than selling it alone; most of the trials behind the joint pain reason above tested it by itself.

If you take medication, are pregnant, or have a health condition, check with a pharmacist or GP first.

The research behind this page (17 studies)

How much does boswellia cost?

That depends on the form and the pack, so we work out the price of the same dose of every boswellia product we can find and rank them.

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