Ashwagandha KSM-66 vs. Shoden: The Extracts Compared

Ashwagandha (Withania somnifera) is one of the best-known plants of the Ayurvedic tradition and is today found in countless food supplements. Anyone who looks more closely quickly comes across two trademark-protected extract names: KSM-66 and Shoden. They stand for two different manufacturing philosophies. This comparison explains in what way the two standardised extracts differ - from the plant parts used through the withanolide content to the usual dosage.

Short answer: two ways to a standardised extract

Both are high-quality, standardised ashwagandha extracts - but they differ in the starting material and in the concentration of the withanolides, the characteristic ingredients of the plant. KSM-66 is a pure root extract with a withanolide content of around five percent, which is typically used in amounts of about 300 to 600 milligrams. Shoden uses leaves and root and, at around 35 percent withanolides, is much more highly concentrated, which is why small amounts of about 60 to 120 milligrams already suffice. Ashwagandha has long been used in the Ayurvedic tradition.

KSM-66: the pure root extract

KSM-66 is one of the longest-established and most widely used ashwagandha extracts. Characteristic is the exclusive use of the root - in the Ayurvedic tradition the root is considered the classically used plant part. Manufacturing takes place via a special, alcohol- and dairy-free extraction process that manages without chemical solvents. At around five percent withanolides, KSM-66 is comparatively moderately concentrated and is therefore used in higher single doses. It is the extract with the greatest distribution in the market. Our Ashwagandha KSM-66® contains exactly this extract: organic root extract 12:1, standardised to 5% withanolides.

Shoden: the highly concentrated leaf-root extract

Shoden pursues a different approach: the extract is obtained from leaves and roots and standardised to a very high withanolide content of about 35 percent. As a result, even small amounts already suffice to provide a comparable amount of withanolides. For users this means smaller capsules and lower milligram figures on the label. The use of leaves is here an essential difference from the pure-root philosophy of KSM-66 - both approaches have their followers.

What withanolides actually are

Withanolides are a group of natural plant substances that are considered characteristic ingredients of ashwagandha. They are used as marker substances to describe the quality and strength of an extract - hence the percentage figures on the packaging. The withanolide content of a raw material fluctuates considerably depending on the plant part, origin, time of harvest and processing. Precisely for this reason, manufacturers reach for standardised brand extracts such as KSM-66 or Shoden: they guarantee a constant, defined withanolide content in every batch. A root powder, by contrast, brings the natural content of the whole root, and that varies with origin and time of harvest.

The percentage figure alone is not enough

A higher percentage value does not automatically mean "better". Decisive is the amount of withanolides actually supplied per portion - and that can only be calculated if you consider the extract amount and standardisation together. An example: 500 milligrams of a five-percent extract provide around 25 milligrams of withanolides, while 100 milligrams of a 35-percent extract provide about 35 milligrams. With our KSM-66® the calculation looks like this: 600 mg of extract per daily dose at 5% withanolides is 30 mg of withanolides. A look at both figures is therefore more worthwhile in a comparison than the mere fixation on the percentage number.

Further ashwagandha forms: root powder and Sensoril

Alongside KSM-66 and Shoden there are further variants. Classic root powder is the most traditional form: the whole root, finely ground, which is why it is usually dosed considerably higher. Our Organic Ashwagandha provides 1,950 mg of organic root powder per daily dose of 3 capsules. Sensoril is another brand extract that, like Shoden, uses leaves and roots and is standardised to a high withanolide content. For the consumer this means: the market offers a broad spectrum from the original root to the highly concentrated speciality extract. KSM-66 and Shoden thereby mark two well-thought-out, well-documented poles.

Intake and use in practice

Ashwagandha is traditionally used as a course over several weeks, since plant extracts typically do not unfold from one day to the next but over a longer period. The concrete dosage depends on the chosen extract and the standardisation - with KSM-66 higher milligram amounts are usual, with Shoden correspondingly lower ones. Many take ashwagandha with a meal; whether in the morning or evening is a matter of taste. With our KSM-66® it is 2 capsules a day with 200 ml of water. It is important to keep to the manufacturer's specification and not to dose up on your own initiative. Anyone who tries ashwagandha anew sensibly starts with the lower dose recommendation and observes how they react to it before adjusting the amount within the scope of the specifications.

Direct comparison and recommendation: what matters when buying

KSM-66 stands for the traditional root philosophy, a solvent-free process and the broadest distribution - for this it needs higher single doses. Shoden scores with very high concentration, small capsules and low milligram amounts, but for this also uses leaves. Both come from the same plant. Regardless of the brand name, you should pay attention to three things: a clear standardisation of the withanolide content, a transparent specification of the extract amount per portion and ideally an independent laboratory test for purity and contaminants. Pregnant women, breastfeeding women and people with thyroid or autoimmune conditions as well as everyone who takes medicines should clarify the use medically before starting, since ashwagandha is not suitable for everyone.

Why ashwagandha is traditionally valued

Ashwagandha is counted in the Ayurvedic tradition among the so-called Rasayana plants and has been used there for many centuries. The botanical name Withania somnifera and the German name "Schlafbeere" (sleep berry) point to the long cultural history of the plant. Traditionally, above all the root was used, often as a powder together with warm milk or honey. This handed-down knowledge of application explains why many modern extracts - above all KSM-66 - deliberately rely on the root and take the traditional use as a reference. The plant is still being investigated scientifically today. There is no authorised health claim for ashwagandha in the EU, so we describe it as what it is: a plant with a long tradition.

Ashwagandha in everyday life: powder, capsule or tea

In practice you encounter ashwagandha in several forms of administration. Capsules with standardised extract such as KSM-66 or Shoden are the most widespread, because they provide a defined amount and are taste-neutral. Anyone who does without animal components also finds variants with a plant-based capsule shell. Powder is the more traditional variant, but has a strong, earthy-bitter taste of its own that does not suit everyone - it is often stirred into milk, smoothies or golden milk. The root is also available as a component of teas or herbal blends. For a precise, constant dosage, standardised capsules are the most straightforward, while powder emphasises the traditional character.

Keeping quality and purity in view

Since ashwagandha is a root plant, the raw material can be contaminated differently depending on cultivation and soil. Reputable suppliers therefore have their extracts tested independently for heavy metals, pesticides and microbial purity and provide corresponding analysis certificates. We have all raw materials and the finished products of every batch tested in independent laboratories for purity and active-ingredient content. Precisely with a natural product this transparency is an important quality feature - regardless of whether it is KSM-66, Shoden or another form. Additionally pay attention to a traceable origin and a clear declaration of extract amount and standardisation. A product that communicates these specifications openly deserves preference in case of doubt - this way you recognise high-quality goods more reliably than by the brand name alone.

Matching Products from Scheunengut

Shoden is not part of our range, KSM-66® is: our Ashwagandha KSM-66® is the root extract from this comparison, organic root extract 12:1, standardised to 5% withanolides. A daily dose of 2 capsules contains 600 mg of extract, which is 30 mg of withanolides. The extract is made from the root alone, without ethanol or other solvents and without milk pre-treatment, which is why it is also vegan. Ashwagandha is traditionally valued for inner calm and balance in demanding times.

If you prefer the whole root, choose the Organic Ashwagandha: finely ground organic root powder in capsules, 1,950 mg per daily dose of 3 capsules, with the natural withanolide content of the root. Many people turn to it deliberately in stressful phases. Vegan and made in Germany.

For men there is the Fadogia Kraftkomplex: fadogia agrestis extract (1,000 mg per daily dose of 2 capsules), combined with 150 mg of ashwagandha root extract, of which 5% withanolides, and 5 mg of zinc. Zinc contributes to the maintenance of normal testosterone levels in the blood. Zinc contributes to normal fertility and reproduction. Zinc contributes to the protection of cells from oxidative stress.

Since 2012 we have worked without investors, with a focus on pure raw-material quality: raw materials and finished batches go to independent laboratories, and everything is made in Germany.

Frequently asked questions (FAQ)

What is the difference between KSM-66 and Shoden?

KSM-66 is a pure root extract with around five percent withanolides, used in higher doses. Shoden uses leaves and root and, at about 35 percent withanolides, is highly concentrated, so that small amounts already suffice. Both come from the same plant.

Is a higher withanolide content better?

Not automatically. Decisive is the amount of withanolides actually supplied per portion, which results from the extract amount and standardisation. A high percentage value with a very small extract amount can in total provide less than a moderately concentrated extract in a higher dose.

Which extract is used more frequently?

KSM-66 is the most widely distributed and longest-established ashwagandha extract and is found in especially many products. Shoden is the highly concentrated alternative and has its followers above all in low-dosed preparations with small capsules.

What should I pay attention to when buying ashwagandha?

Pay attention to a clear standardisation of the withanolide content, a transparent specification of the extract amount per portion and, if possible, an independent laboratory test for purity and contaminants. The brand name alone says less than these concrete specifications. On our Ashwagandha KSM-66® both are on the label: 600 mg of extract, of which 5% withanolides, per daily dose of 2 capsules.

For whom is ashwagandha not suitable?

Pregnant women, breastfeeding women as well as people with thyroid or autoimmune conditions and everyone who takes medicines should obtain professional advice before use. Ashwagandha is not suitable for everyone, so an individual consideration before starting is sensible.