KSM-66 vs Regular Ashwagandha: What's the Difference?

KSM-66 is a branded ashwagandha extract made by Ixoreal Biomed from the root only and standardised to at least 5% withanolides, measured by HPLC. 'Regular' ashwagandha usually means plain dried root powder, which is not standardised, or another extract with its own process and percentage. The main differences are the plant part, the extraction method and how consistently it is measured.

What KSM-66 is

KSM-66 is a trademarked ashwagandha extract produced by Ixoreal Biomed, a company based in Hyderabad, India. It uses only the root of Withania somnifera, with no leaf.

According to the manufacturer and its distributors, the extraction is water-based and uses milk as a processing step, with no alcohol or other chemical solvents. Ixoreal describes the result as 'full-spectrum', meaning it aims to keep the balance of compounds found in the root rather than concentrating one fraction: Actylis product page.

It is standardised to a minimum of 5% withanolides, measured by HPLC. Because it is a branded ingredient, products that use it can name it on the label under licence.

How it compares with root powder

Plain ashwagandha root powder is the dried, ground root. It has not been concentrated or standardised, so the withanolide content is usually lower and varies more between batches.

Because powder is not concentrated, amounts tend to be larger, often a gram or more. Labels on powder products usually do not state a withanolide figure.

An extract concentrates the compounds, so a smaller amount, typically a few hundred milligrams, is used, and the label can state a withanolide figure you can check.

How it compares with other extracts

There are other branded and unbranded ashwagandha extracts. Some use root and leaf. Some use alcohol-based solvents. Some are standardised to higher withanolide percentages, or measured by a different method.

None of this makes one automatically better. It means the extracts are different products, and research done on one extract does not automatically apply to another. If a product refers to studies, check they used the same extract.

Our beginner's guide to adaptogens puts ashwagandha in context alongside other herbs.

Read: a beginner's guide to adaptogens.

Reading the label side by side

When you compare a KSM-66 product with another ashwagandha, line up the same four facts from each label: the plant part, the extract amount per capsule, the withanolide percentage and the testing method. Then work out the milligrams of withanolides per daily serving by multiplying the extract weight by the percentage.

For example, 500 mg of KSM-66 at 5% gives 25 mg of withanolides. A 300 mg extract at 10% gives 30 mg, but it may include leaf and is measured differently, so the two figures are not a like-for-like comparison.

Price per daily serving is a fairer comparison than price per pouch, because capsule counts and serving sizes differ between brands.

What about vegans?

Because the standard KSM-66 process uses milk as a processing aid, some people who avoid all animal products ask about it. Some suppliers state the finished extract contains no milk solids, and a milk-free version is also offered by the maker. If this matters to you, ask the brand which version it uses.

Questions to ask of any ashwagandha product

Which part of the plant is used?

Is the extract named, and can the brand confirm it?

What percentage of withanolides is stated, and by which method?

How much extract is in each capsule, and how many capsules make the daily amount?

Our quality review covers these in more detail.

Read: what to check in an ashwagandha supplement.

Who should check before taking ashwagandha

Ashwagandha is not suitable for everyone. Speak to your GP or pharmacist before taking it if you are pregnant or breastfeeding, have a thyroid or autoimmune condition, have liver problems, or take medicines for mood, sleep, blood pressure, blood sugar or the thyroid. Stop and seek advice if you feel unwell.

Hyoomen's figures

Hyoomen KSM-66 Ashwagandha states 500 mg of KSM-66 extract with 25 mg of withanolides per capsule.

See Hyoomen KSM-66 Ashwagandha.

Frequently asked questions

Is KSM-66 the same plant as ashwagandha?

Yes. It is an extract of Withania somnifera root, the same plant.

Why does KSM-66 cost more than powder?

Extraction, standardisation and the branded licence add cost compared with plain dried root.

How do I know a product really uses KSM-66?

Licensed products usually show the KSM-66 name. You can ask the brand for confirmation.

Does KSM-66 contain leaf?

No. The maker states it is root-only.

Is KSM-66 a capsule or a powder?

KSM-66 is the extract itself. Brands sell it in capsules, tablets or as a loose powder.

Important

This article is general information, not medical advice. Food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle. If you are pregnant, breastfeeding, taking any medication or under medical supervision, speak to your GP or pharmacist before taking a supplement. Do not exceed the stated recommended daily dose.