Berberine is a naturally occurring yellow compound found in the roots, stems and bark of several plants, including Berberis species such as barberry, as well as goldenseal and a small number of other botanicals. It has a long history of traditional use in various plant-based practices around the world, and today it is most commonly sold as a supplement in standardised capsule form.
Berberine attracts a lot of attention online, much of it overstating what can be said about it. We are going to stick to what berberine actually is, where it comes from, and how it is sold — without making claims about what it does in the body, since no such claim is currently authorised for berberine in the UK.
What plants does berberine come from?
Berberine is found across a range of plants in the Berberidaceae family, most notably various Berberis species, and is also present in goldenseal, Oregon grape and a handful of other botanicals used in different traditional practices. The compound gives many of these plants their characteristic yellow colour, which is visible in the roots and inner bark.
Because berberine occurs across several unrelated plant families, supplement products can vary in which source plant they use, and this is worth checking on the label if the source matters to you.
How is berberine typically extracted?
Berberine is extracted from plant material and then concentrated, since the raw plant contains only a small proportion of the compound relative to its total weight. Supplement manufacturers standardise their extracts to a stated percentage of berberine, which is a way of ensuring consistency between batches rather than leaving the amount to natural variation in the source material.
The amount of berberine in any given product varies between brands and formulations, so check the label of the specific product you are considering rather than assuming a fixed figure applies across the category. Our guide on how to read a supplement label explains what to look for.
How is berberine traditionally used?
Berberine-containing plants have a long history in various traditional practices, including in traditional Chinese medicine and in Ayurvedic practice, typically prepared from root or bark material. This history reflects long-standing use rather than a scientifically established effect, and we describe it here as a matter of historical record rather than as a reason to expect any particular outcome from taking it.
There is currently no authorised nutrition or health claim for berberine under UK or EU retained law, which means no seller is permitted to state that it has a specific effect on the body. Where you see such claims made, they go beyond what is currently permitted.
Why do berberine products vary so much in price?
Price differences in this category usually come down to three factors: how the raw plant material was sourced, how it was extracted and standardised, and whether the finished product has been independently tested. A lower-cost product is not automatically inferior, but a price far below the rest of the market is worth treating as a prompt to ask questions, in much the same way it is for any other botanical extract sold as a supplement.
What forms is berberine sold in?
| Form | Typical description |
|---|---|
| Capsules | Standardised extract in a fixed-dose capsule, the most common retail format |
| Powder | Loose standardised extract, measured by the user |
| Combination formulas | Berberine paired with other plant extracts in one product |
Whichever format you choose, the standardisation percentage stated on the label is the figure worth comparing between products, rather than the total weight of extract, which can be misleading on its own.
What should you check before buying a berberine product?
- Which plant the berberine is sourced from
- The stated standardisation percentage
- Whether the product has been independently tested, and whether a certificate of analysis is available
- Whether you take any medication, since berberine is one of the botanicals most often flagged for potential interactions — always check with a pharmacist first
Our guide to certificates of analysis explains what to look for in that testing documentation, and our guide on spotting quality in a plant-derived supplement covers similar questions worth asking of any botanical seller, not only shilajit.
Common questions
Is berberine the same thing regardless of which plant it comes from?
Chemically, berberine is the same compound wherever it is sourced from, though products differ in extract standardisation, purity and what else, if anything, is included in the formulation.
Can I take berberine alongside medication?
Speak to your pharmacist or doctor first. Berberine is commonly flagged as a botanical to discuss with a healthcare professional before combining with prescribed medication.
Does berberine have any authorised health claims in the UK?
No. There is no authorised nutrition or health claim for berberine at present, so any specific effect described alongside it is not something we can state as fact.
Is a higher standardisation percentage always better?
Not automatically. It indicates a more concentrated extract, but the right amount for you depends on the product and your own circumstances, which is exactly why speaking to a pharmacist is worthwhile if you are taking anything else.
Where can I find other plant-based supplements explained this way?
See our guides to ashwagandha and what fulvic acid is, or browse our everyday wellness collection.
Food supplements should not be used as a substitute for a varied and balanced diet or a healthy lifestyle. If you are pregnant, breastfeeding, taking medication or under medical supervision, speak to your doctor or pharmacist before starting any supplement. We are not able to give medical advice.