BCM-95 vs Curcumin with Piperine: Which to Buy?

BCM-95 and “curcumin with piperine” are two different answers to the same problem: curcumin on its own is poorly absorbed. BCM-95 recombines curcuminoids with other natural turmeric compounds, while piperine products add black pepper extract to slow curcumin’s breakdown. Neither is automatically right for everyone, and because enhanced-absorption curcumin has come under safety review in the UK, how you choose matters as much as what you choose.

Turmeric, Haridra and curcumin: getting the terms straight

Turmeric is the rhizome (underground stem) of Curcuma longa. In Ayurveda it is called Haridra and is one of the most widely used plants in the tradition, appearing in classical texts and in the Ayurvedic Pharmacopoeia of India. Classical sources describe it as bitter and pungent in taste and warming in nature, and it has long been used in Ayurveda both in the kitchen and in formulations, often taken with warm milk or ghee.

Curcumin is the best-known compound in turmeric. Together with two close relatives, demethoxycurcumin and bisdemethoxycurcumin, it makes up the group called curcuminoids. Ordinary turmeric powder typically contains only a few per cent curcuminoids by weight, alongside essential oils (such as ar-turmerone), starches and fibre.

So when you shop for “curcumin tablets”, you are usually choosing between whole turmeric (Haridra) and a concentrated extract, and then, if it is an extract, between different ways of helping the body absorb it.

What “95% curcuminoids” actually means

“Standardised to 95% curcuminoids” means that 95% of the extract’s weight is the three curcuminoids combined, not 95% curcumin alone. It is a measure of concentration, not of absorption. A 500 mg capsule of 95% extract contains roughly 475 mg of curcuminoids, far more than the same weight of turmeric powder.

That concentration is the point of an extract, but it is also why the UK’s Committee on Toxicity (COT) has looked closely at curcumin supplements. Concentrated curcuminoids, especially in forms designed to raise blood levels, are a different exposure from turmeric used in cooking.

The main curcumin formats compared

Curcumin with piperine: the popular combination

Piperine is the compound that gives black pepper its bite. It is added to curcumin because it slows down the enzymes and transporters that clear curcumin from the body. A frequently quoted 1998 study by Shoba and colleagues in Planta Medica reported much higher blood curcumin when 20 mg of piperine was given with 2 g of curcumin.

That study was small, however, and the COT’s 2024 statement described the claim that piperine boosts curcuminoid absorption as “questionable and highly uncertain”. In the COT’s survey of UK products, 10 out of 15 turmeric supplements contained piperine.

The same property that makes piperine interesting is also its main drawback. It affects enzymes (including CYP3A4 and CYP2C9) and a transporter (P-glycoprotein) that the body uses to process many prescription medicines. A Pharmacy Times review lists possible interactions with some anticonvulsants, sedatives, anti-inflammatory painkillers, antihistamines and blood thinners, while noting that the supporting studies were small. If you take any regular medicine, ask a pharmacist before choosing a piperine product.

In our range, Carbamide Forte Curcumin with Piperine 95% is a standard example of this format, and Neemveda Neem, Turmeric and Black Pepper combines turmeric and pepper with neem.

BCM-95: curcumin with turmeric’s own oils

BCM-95, also sold as Biocurcumax, was developed by the Indian extract maker Arjuna Natural. Instead of adding pepper, it recombines curcuminoids with non-curcuminoid parts of turmeric, which the developers say help absorption. A 2008 pilot study in the Indian Journal of Pharmaceutical Sciences (Antony and colleagues) reported higher and longer-lasting blood curcumin with BCM-95 than with plain curcumin or a curcumin-lecithin-piperine product.

It is worth knowing the limits of that evidence: the study involved 11 volunteers, was described by the authors as a pilot, and was sponsored by the company that makes BCM-95. That doesn’t make the findings wrong, but it is not independent, large-scale proof.

For people who would rather avoid piperine, a pepper-free format such as Curegarden Curcumin BCM-95 is an option, but BCM-95 still falls into the enhanced-absorption category, so the safety points below still apply.

Whole-root Haridra: the traditional route

If you are drawn to turmeric because of its place in Ayurveda, a whole-root product is closest to how Haridra has traditionally been used. These products contain dried turmeric rhizome, sometimes with a small amount of extract, and they deliver far fewer curcuminoids per capsule than a 95% extract.

Examples include Himalaya Haridra (Turmeric), Ayurleaf Haridra Turmeric and Organic India Turmeric Formula; check each label for exactly what is inside. Many people also enjoy turmeric as food. Our 30-day golden milk challenge is a gentle, kitchen-based way to bring Haridra into your routine.

Combination products

Turmeric is often paired with other herbs. In Ayurveda, Shallaki (boswellia resin) and Haridra are both traditionally used to support joint comfort and mobility, and some modern products combine them, such as HealthyHey Boswellia and Curcumin. With any combination, add up the curcumin across all your products, because it is easy to double up without realising.

Safety: what UK buyers should know

Turmeric in food is widely eaten and well tolerated. Concentrated supplements are different, and several regulators have looked at them:

• Liver reactions. The UK COT (December 2024) found reasonable evidence linking turmeric supplements to rare liver reactions, which appeared to be individual (idiosyncratic) and resolved when the product was stopped. Australia’s TGA issued a similar warning in 2023. The US NCCIH notes that liver harm has been reported with high-absorption formulations. Stop and see a doctor if you notice yellowing skin or eyes, dark urine, unusual tiredness, nausea or loss of appetite.
• Intake guidance. The acceptable daily intake for curcumin set by JECFA and confirmed by EFSA is 0 to 3 mg per kg body weight, about 180 mg a day for a 60 kg adult. Some high-strength supplements exceed this at label doses.
• Who should avoid or check first. Avoid turmeric supplements if you are pregnant or breastfeeding, or have liver, gallbladder or bile duct problems, unless a doctor advises otherwise. Speak to a GP or pharmacist if you take blood thinners, any regular prescription medicine, or are having surgery.
• Digestive effects. Nausea, reflux and loose stools are the most commonly reported side effects.

A sensible approach is to follow the label, avoid stacking several curcumin products, and choose a lower-concentration or whole-root format if you have no particular reason to want a high-absorption one. For a broader overview, see our turmeric and curcumin UK buyer’s guide, or browse the turmeric range.

So which should you buy?

• You want a traditional, food-like approach: whole-root Haridra.
• You want a concentrated extract and take no regular medicines: a 95% curcuminoid product, with or without piperine, at the label amount.
• You want to avoid piperine: BCM-95 or a plain whole-root product.
• You take medicines, have liver or gallbladder concerns, or are pregnant: speak to a healthcare professional before taking any curcumin supplement.

Sources and further reading

• Committee on Toxicity (COT/FSA) – Statement on the potential risk to human health of turmeric and curcumin supplements (COT/2024/07), cot.food.gov.uk
• Therapeutic Goods Administration (Australia) – Medicines containing turmeric or curcumin: risk of liver injury (2023), tga.gov.au
• US National Center for Complementary and Integrative Health – Turmeric, nccih.nih.gov/health/turmeric
• Antony B. et al. – A pilot cross-over study to evaluate human oral bioavailability of BCM-95 CG (Biocurcumax). Indian Journal of Pharmaceutical Sciences, 2008; 70(4): 445–449
• Pharmacy Times – Piperine Drug Interactions (2017), pharmacytimes.com

Frequently asked questions

Is BCM-95 better than curcumin with piperine?

Not proven. A small 2008 pilot study funded by the maker reported higher blood curcumin with BCM-95, but there is no large independent head-to-head evidence. BCM-95’s main practical difference is that it doesn’t contain piperine, which can matter if you take medicines.

What does 95% curcuminoids mean on a label?

It means 95% of the extract’s weight is made up of the three curcuminoids: curcumin, demethoxycurcumin and bisdemethoxycurcumin. It describes how concentrated the extract is, not how well it is absorbed.

Can piperine interact with medicines?

It can. Piperine affects enzymes and transporters the body uses to process many medicines, including some anticonvulsants, sedatives and blood thinners. If you take any regular medicine, check with a pharmacist before using a curcumin product with black pepper extract.

Are curcumin supplements safe for the liver?

Most people tolerate them, but the UK Committee on Toxicity found reasonable evidence of rare liver reactions with turmeric supplements, particularly concentrated and high-absorption forms. Stop and see a doctor if you notice yellowing of the skin or eyes or dark urine, and avoid them if you have liver or gallbladder problems.

Is whole turmeric root the same as Haridra?

Yes. Haridra is the Ayurvedic name for turmeric rhizome, Curcuma longa. Haridra products usually contain powdered whole root, which is much lower in curcuminoids than a standardised extract.

This guide is for general information and is not medical advice. Food supplements should not replace a varied, balanced diet and a healthy lifestyle. If you are pregnant, breastfeeding, taking medication or under medical supervision, speak to a healthcare professional before using herbal supplements.