Guide
Ashwagandha tested: the best capsules compared (2026)
Last updated: 4 August 2026
Written by
Health Tested Editorial Team
Ashwagandha is one of the most important medicinal plants in Ayurvedic medicine. It's considered a natural adaptogen and has proved its worth in studies, particularly for stress, sleep problems, anxiety and depression. It also contains a wealth of antioxidants, which have an anti-inflammatory effect and can protect your body from free radicals.
But which ashwagandha is right for you?
There are countless ashwagandha supplements on the market, but not all of them are effective.
The queen of Ayurvedic herbs
Ashwagandha (Withania somnifera) is a plant from the nightshade family. It's also known as winter cherry, poison gooseberry, 'Indian ginseng' or the queen of Ayurvedic herbs.
For around 5,000 years, the plant has been used in a variety of ways in Ayurveda, the traditional Indian system of medicine, because of its many positive properties. In traditional Chinese medicine (TCM), too, ashwagandha root is used to treat stress-related symptoms such as anxiety, sleep problems and tiredness. It is also used to support physical and mental endurance, strengthen the immune system and regulate hormone balance. On top of that, it's said to act as an aphrodisiac.
Ashwagandha originally comes from India, the Middle East and North Africa.
Laboratory analyses have identified more than 35 chemical constituents in the roots of Withania somnifera.
Adaptogenic medicinal plants promote resilience
Ashwagandha is considered a natural adaptogen. Adaptogens are biologically active substances found in various plants that help make them more resilient and adaptable.
Ashwagandha is one of the best-known adaptogenic plants and has a reputation for helping the body adapt to challenging situations. Adaptogens act on the hypothalamic-pituitary-adrenal axis (HPA axis), which plays an important role in hormone balance and the stress response.
Stress factors such as lack of sleep, environmental toxins or pain can put a strain on the body, but adaptogens have a balancing effect and support the body's resilience. They can improve quality of life and restore balance in both body and mind.
Benefits of taking ashwagandha
'Healing for body and mind'
According to studies, the medicinal plant may have the following positive effects:
- better sleep quality and relief from insomnia
- more muscle mass, strength, endurance and energy
- a stronger immune system
- reduced inflammation
- cell regeneration
- fewer inflammatory conditions
Benefits for mental health
Taking ashwagandha may also ease psychological symptoms:
- relief from stress and anxiety
- lower levels of the stress hormone cortisol
- greater emotional stability
- better stress management
- improved brain function (especially memory and concentration)
There are several things to consider when choosing the right ashwagandha supplement.
What to avoid when buying ashwagandha
When you choose an ashwagandha supplement, make sure it doesn't contain any additives that could undermine the product's intended benefits.
When you're looking for the right ashwagandha product, watch out for:
- a low dose of ashwagandha extract
- a low withanolide content (below 3%) or no information from the manufacturer
- low bioavailability
- gelatine capsule shells, binders and anti-caking agents
- capsules that aren't gastro-resistant
- any allergens you react to, such as soya, gluten or lactose
- supplements at suspiciously low prices
- products with supposedly extremely high doses (be cautious)
What types of ashwagandha supplement are there?
Powder, capsules or liquid? Ashwagandha comes in several forms, each with its own advantages and drawbacks:
- powder
- capsules
- drops
- liposomal form
Powder, made from the dried and ground root, is one of the most questionable forms. It often contains no root extract, which means its withanolide content is very low.
There are no significant differences in how ashwagandha capsules and drops work, so you can choose according to personal preference. There's just one exception: liposomal ashwagandha.
Capsules
Pros
Easy to take: just swallow
Handy when travelling
Easy to dose (consistent active ingredient content)
No unpleasant taste or smell
Cons
Stomach acid can affect absorption of the active ingredient
Digestion can partly break down the active ingredient
The capsule shell may contain gelatine
Unsuitable if you have difficulty swallowing
A high dose may mean taking several capsules
Drops
Pros
Easy to dose
Fast absorption of the active ingredient (via the mucous membranes)
Good for people with swallowing difficulties or stomach problems
Versatile: can be mixed into drinks or food
Cons
The drops can taste unpleasant
Exact dosing can be difficult, as the number of drops varies
The liquid can leak or spill
Shorter shelf life than capsules
Liposomal form
Pros
Higher bioavailability of the active ingredient
Better absorption by bypassing stomach acid
A lower dose is needed for the same effect
Can mask the taste of the active ingredient
No additives
Cons
May cost more because manufacturing is more complex
Availability and choice may be limited
Making liposomes can be difficult and requires specialised technology
Ashwagandha in true liposomal form
Liposomes are tiny lipid vesicles made of the same material as human cell membranes. Liposome technology encapsulates nutrients, such as ashwagandha root extract, so that your body doesn't treat the enclosed active ingredient as a 'foreign body', allowing it to pass directly into the bloodstream.
The liposomal coating is an innovative solution that lets your body absorb and make the most of large amounts of the active ingredients.Note: not every supplement is liposomal.
Because they measure just nanometres across and are made of fats, liposomes protect the active ingredients inside them from being broken down by enzymes, such as those in saliva and stomach acid. They deliver the active ingredients directly into the bloodstream, which significantly improves their absorption.
A simple model of a liposome with a fatty outer layer and a watery chamber inside. Liposomes are an innovative technology for releasing active ingredients precisely and efficiently. That's why they're now widely used in medicine and cosmetics.
Top 3: the best ashwagandha supplements on the market
Finding the right ashwagandha isn't easy.
That's why we assess ashwagandha supplements against the following six factors:
How is the ashwagandha formulated?
Are there any study or test results?
How high is the withanolide content? (Over 3%?)
Does the product contain any allergens?
How good is the value for money?
Is there anything special about the formulation or production?
The most important factor: how is the ashwagandha formulated?
As with most plants, the best and most concentrated constituents of ashwagandha aren't found in the leaves but in the root.
Alongside amino acids, fatty acids and choline, the root contains alkaloids and, most importantly, withanolides.
Ashwagandha's effect is mainly due to its high concentration of withanolides, which are biologically active substances. These secondary plant compounds are known above all for their anti-inflammatory, antioxidant and stress-reducing properties.
In studies, these active compounds have proved effective in fighting inflammation and neutralising free radicals. Ashwagandha may also help your body prepare better for stressful situations and dampen its stress responses.
The withanolide content is the most important quality marker when you're looking for the right ashwagandha product. Different growing and processing methods can affect the concentration and effectiveness of withanolides. That's why it's important to buy high-quality ashwagandha products from trustworthy manufacturers, so that you get enough withanolides.
product review
TESTED
our quality criteria
MELINAVA Ashwagandha
by MELINAVA
Pros
- Liposome technology
- High bioavailability thanks to liposomes (64 times higher)
- Ashwagandha extract made exclusively from the roots
- 5% withanolides
- Active ingredient not destroyed by stomach acid (thanks to the liposomal coating)
- Vegan
- Made in France
- Free from soya, gluten and lactose
- No added preservatives
- No added allergens
- GMO-free
Cons
- Only available online
- Often sold out
Verdict
Melinava Ashwagandha is high-strength, with 160 mg of ashwagandha root extract per daily dose.*
The ashwagandha extract is made exclusively from the root and contains no leaves. At around 5%, its withanolide content is the highest that can be achieved naturally from a pure root extract.
Melinava is one of the strongest over-the-counter ashwagandha products on the German market.
The capsules can also be opened and the contents taken with a drink.
*Because the nutrients are directly available, much lower doses are needed than with conventional extracts.
The formulation and dose are designed to work together to prevent and relieve a wide range of symptoms. The innovative liposome technology ensures optimal absorption from the gut into the bloodstream.
User satisfaction and the many positive customer reviews of Melinava Ashwagandha speak for themselves. People have used Melinava with very good results for symptoms such as lack of energy, sleep problems and poor concentration, as well as for inflammation. Melinava came first in our test (as of January 2026). The manufacturer takes tolerability very seriously, so the product is completely free from unwanted additives.
Vanosan Ashwagandha
by VANOSAN
Pros
- Organic raw materials from India
- Lab-tested
- Vegan
- Free from soya, gluten and lactose
- No added preservatives
- No added allergens
- GMO-free
Cons
- Ashwagandha powder rather than root extract
- No information on withanolide content
- Low bioavailability
- 3 capsules a day
- Only available online
Verdict
Vanosan Ashwagandha is generously dosed, with 2,600 mg of ashwagandha powder per daily dose. The capsules contain ashwagandha powder made from ground root rather than root extract, so the withanolide content per capsule cannot be determined.
In addition, the dosage form means that bioavailability is severely limited. There are no studies on how much of the ashwagandha actually becomes available to the body.
The manufacturer sources its raw materials from India. They are lab-tested on site, and the product is made in Germany. The recommended daily dose of 3 capsules is high compared with other ashwagandha products.
The capsule shell is made without animal ingredients, so it is also suitable for vegetarians and vegans.
Users are generally positive about Vanosan Ashwagandha. It is well tolerated and provides relief from sleep problems and nervousness. Some customers criticise the taste and the large number of capsules they have to take (3 a day). It is made in Europe. Delivery is free and usually arrives within 3 working days.
Achterhof Ashwagandha Organic Capsules
by ACHTERHOF
Pros
- Low price
- Vegan
- Made in Germany
- Free from soya, gluten and lactose
- No added preservatives
- No added allergens
- GMO-free
Cons
- No information on withanolide content
- No information on whether the capsule shell is gastro-resistant
- 3 capsules a day
Verdict
Achterhof Ashwagandha Organic Capsules have a standard dose of 1,500 mg a day. The capsules contain ashwagandha powder made from ground root rather than root extract, so the withanolide content per capsule cannot be determined. The product offers very good value for money.
The recommended daily dose of 3 capsules is moderate compared with other ashwagandha products. The capsule shell is made without animal ingredients, so it is also suitable for vegetarians and vegans.
Users are fairly positive about Achterhof. Taking it relieves symptoms such as sleep problems and restlessness, and it is well tolerated. However, users with chronic symptoms often find the effect unsatisfactory. Some customers also criticise the smell, and a few say they do not tolerate it well.
Achterhof Ashwagandha capsules are made in Germany. Delivery costs 57 kr and usually arrives within 2–3 working days.
The active ingredients in ashwagandha may help the immune system respond better to threats by stimulating the production of antibodies and immune cells.
Natural immune support
One of ashwagandha's most important properties is its ability to reduce oxidative stress. Oxidative stress can weaken the immune system, because free radicals can damage immune cells and impair how well they work.
Ashwagandha is rich in antioxidants. These can protect the cells of the immune system from damage by free radicals and so strengthen the body's defences. Ashwagandha may also have an anti-inflammatory effect, which benefits the immune system too, because inflammation can put it under strain and severely impair its function.
Some studies have shown that taking ashwagandha can strengthen the immune system and increase the number of immune cells in the blood. It can also increase the production of antibodies, which play an important role in fighting infections.
Calming and energising at once
Ashwagandha is often used for emotional tension, anxiety and sleep problems. At the same time, it gives you more energy and improves performance. How is that possible?
Daytime tiredness, exhaustion and restlessness can be caused by a lasting lack of sleep and poor sleep quality. Ashwagandha's sleep-promoting properties can counteract this. The adaptogen can lower levels of the stress hormone cortisol. After a good night's sleep, you have more energy during the day.
You can also time when you take ashwagandha to suit your personal preferences or the symptoms you want to address.
If you suffer from nervousness, anxiety or restlessness, it's best taken in the morning or during the day. On particularly stressful and demanding days, taking it early can also contribute to greater resilience and calm.
If your main aim is to improve your sleep quality, it's best taken in the evening.
Ashwagandha and its positive effect on hair
Ashwagandha is also valued for its effect on hair. Hair problems such as hair loss or thinning hair are often closely linked to stress, and that's where ashwagandha comes in. The medicinal plant is thought to benefit hair by reducing stress and anxiety. Studies suggest that ashwagandha may inhibit the release of the stress hormone cortisol, which in turn is linked to hair problems. Inhibiting cortisol in this way may help strengthen hair roots and reduce hair loss.
Ashwagandha also has a remarkably high content of tyrosine, an amino acid that stimulates the production of melanin. Melanin is the pigment responsible for natural hair colour. By promoting melanin production, tyrosine may help counteract premature greying and keep your hair its natural colour for longer.
Ashwagandha may also improve microcirculation in the scalp, increasing the supply of essential nutrients to the hair follicles and supporting healthy hair roots. This helps promote hair growth and reduce hair loss.
Skin health can benefit from ashwagandha too
Thanks to the high concentration of antioxidants in ashwagandha, taking this medicinal plant may also benefit your skin. Antioxidants protect skin cells from the harmful effects of free radicals caused by UV radiation, pollution and other external factors. They may also support the skin's natural collagen production, which over time can make skin firmer and more elastic.
Several ashwagandha products tested
* We may earn a commission from some of the companies featured. This is how we keep our comparisons free to read.
Some of these companies are our commercial partners.
Sources
- Chandrasekhar, K., Kapoor, J., & Anishetty, S. (2012). A prospective, randomized double-blind, placebo-controlled study of safety and efficacy of a high-concentration full-spectrum extract of ashwagandha root in reducing stress and anxiety in adults. Indian journal of psychological medicine, 34(3), 255–262. https://doi.org/10.4103/0253-7176.106022 FECYT - Spanische Stiftung für Wissenschaft und Technologie (2012) https://www.sciencedaily.com/releases/2012/01/120110102058.htm
- Gupta A, Mahdi AA, Shukla KK, et al. Efficacy of Withania somnifera on seminal plasma metabolites of infertile males: a proton NMR study at 800 MHz. Journal of Ethnopharmacology. 2013 Aug;149(1):208-214. DOI: 10.1016/j.jep.2013.06.024. PMID: 23796876.
- Raut, A. A., Rege, N. N., Tadvi, F. M., Solanki, P. V., Kene, K. R., Shirolkar, S. G., ... & Vaidya, R. A. (2012). Exploratory study to evaluate tolerability, safety, and activity of Ashwagandha (Withania somnifera) in healthy volunteers. Journal of Ayurveda and Integrative Medicine, 3(3), 111–114.
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- Raut AA, Rege NN, Tadvi FM, et al. Exploratory study to evaluate tolerability, safety, and activity of Ashwagandha (Withania somnifera) in healthy volunteers. J Ayurveda Integr Med. 2012;3(3):111-114. doi:10.4103/0975-9476.100168
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- Chandrasekhar K, Kapoor J, Anishetty S. A prospective, randomized double-blind, placebo-controlled study of safety and efficacy of a high-concentration full-spectrum extract of ashwagandha root in reducing stress and anxiety in adults. Indian J Psychol Med. 2012;34(3):255-262. doi:10.4103/0253-7176.106022
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