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Best ashwagandha

Best ashwagandha supplements UK, tried and tested by experts

Published: February 9, 2026 at 1:04 PM

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Our expert nutritionists have put ashwagandha supplements through their paces to find out whether they can really help with anxiety, sleep, stress and more

Whether you're looking for a deeper, more restful night's sleep, or want better concentration while working or studying, you may be turning to health supplements.

Ashwagandha is a herb that has been used in Ayurvedic medicine for thousands of years due to its reputation for benefitting overall wellbeing. Benefits can include relaxation and calm, a more balanced mood and improved sleep as well as a boosted attention span and greater memory retention.

We've put ashwagandha supplements to the test to help you cut through the noise and find the right one for you. Read on for our top picks.

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Best ashwagandha supplements at a glance

Best ashwagandha supplements to buy 2026

WeightWorld Ashwagandha KSM-66

best ashwagandha supplement

Best ashwagandha tablet

Star rating: 5/5

Another supplement that delivers a high dose – these tablets each contain 1500mg of ashwagandha. The source is KSM-66, which is a highly concentrated extract that has been extensively researched for its health benefits. We were impressed to find that this bottle contains a six-month supply of tablets, bringing the daily cost down to 7p, and we found the compact capsule size made it easy to take.

Available from:
WeightWorld (£9.99)
Amazon (£9.98)

Vitabright Ashwagandha Premium

best ashwagandha supplement

Best ashwagandha capsule

Star rating: 4.5/5

This ashwagandha supplement impressed us on test, as we've come to expect from Vitabright. It uses KSM-66, a concentrated extract of ashwagandha, plus black pepper which helps to aid absorption, although it might make you sneeze when you open the bottle.

Available from:
Vitabright (£16.99)
Amazon (£17.99)

Together Health Organic Ashwagandha

best ashwagandha supplement

Best ashwagandha supplement for travel

Star rating: 4.5/5

Together Health is well-known for its travel-friendly, plastic-free and compostable packaging, which impressed us on test. Each capsule contains 500mg of KSM-66 ashwagandha, with a daily dose of one capsule per day. We found the capsules easy to take on test, with no discernible taste or smell.

Available from:
Superdrug (£11.99)
Amazon (£9.99)
Together Health (£11.99)

Zooki Ashwagandha Liquid Sachets

Zooki Ashwagandha Liquid Sachets

Best ashwagandha liquid sachet

Star rating: 4/5

This liquid supplement from Zooki is another good alternative to capsules. We enjoyed the passion fruit flavour of the supplement, and you can also taste the 100mg of curcumin (turmeric). You can take the supplement on its own directly from the pouch, which is great on-the-go, or you can dilute it with water if the flavour is too strong.

Each sachet contains an adequate 500mg of KSM-66 ashwagandha, which has a high absorption rate thanks to the liposomal encapsulation.

Available from:
Holland and Barrett (£2.50 for 1 sachet)
Victoria Health (£29.99)

Wild Nutrition KSM-66 Ashwagandha Plus

best ashwagandha supplement

Best ashwagandha supplement with magnesium

Star rating: 4/5

Two capsules make up a daily dose of this supplement, providing an adequate 600mg dose of KSM-66 ashwagandha extract. Magnesium is added to these supplements, which has been shown to help tackle tiredness and fatigue.

It's worth noting that these are one of the most expensive ashwagandha supplements we tested, with a daily dose of two capsules costing 83p.

Available from:
Amazon (£23.75)
Wild Nutrition (£26)
Holland & Barrett (£26)

Vitabiotics Ultra Ashwagandha

best ashwagandha supplement

Best everyday ashwagandha supplement

Star rating: 4/5

Each one of these tablets contains 600mg of ashwagandha extract, which the brand claims is the equivalent to 6000mg of whole ashwagandha. Also included in the supplement is vitamin B6, which is proven to help against tiredness and fatigue.

Available from:
Vitabiotics (£14.95)

Feel Ashwagandha + Mushroom complex

best ashwagandha supplement

Best ashwagandha and mushroom supplement

Star rating: 3.5/5

This ashwagandha supplement from Feel is the most expensive on our list, with a daily serving of two capsules costing £1.55. However, for your money you get 600mg of ashwaganda, plus other ingredients including reishi mushrooms, Lion's Mane and vitamin B12.

Available from:
Feel (£37.40)

What does ashwagandha do?

Ashwagandha is a herb, often used as an adaptogen to help the body manage stress and promote balance and calm by targeting cortisol, which is often referred to as the stress hormone.

As ashwagandha has an ability to relax the nervous system, it is often used as a natural choice for those with sleep issues like insomnia. Ashwagandha can also boost cognitive function which can aid our memories and attention spans, as well as combating physical exhaustion.

It has other benefits too, like regulating bloody sugar and lipid metabolism, improving energy levels, stamina and bolstering immune function.

What form of ashwagandha is most effective?

As ashwagandha is a herb rather than an essential nutrient, there aren't nutrient reference values (NRVs) to guide how much is a recommended daily amount.

There are a number of factors that impact the amount of ashwagandha you should take, with studies suggesting that taking 300mg-600mg once or twice a day can be effective for general wellbeing. If you're taking ashwagandha to help with your sleep, it may be that a dose of around 500mg taken in the evening will have more impact.

Withanolides are the primary active components that contribute to the health benefits of ashwagandha, with two extracts often used in supplements being KSM-66 and Sensoril. Most high-quality ashwagandha supplements contain between 5-10 per cent withandolides.

Other supplements may simply contain powdered ashwagandha root, which was traditionally mixed with water.

How we test ashwagandha supplements

These ashwagandha supplements are assessed for quality and performance through a combination of expert analysis and hands-on testing. We spoke to our expert nutritionist, Kerry Torrens, who carefully reviewed each product in detail, assessing the ingredients, formulation, strength and overall suitability from a nutritional perspective.

Alongside this expert review, our experienced product testers evaluated each supplement in real-world conditions, including taste testing where applicable. This ensures our recommendations balance scientific credibility with everyday usability.

Each supplement is tested against a clear set of criteria, including:

• Taste and flavour
• Value for money
• Suitability for different dietary requirements
• Ingredient quality and transparency
• Strength and potency

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Authors

Imogen Hope

Jo Williams

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