Ashwagandha in the UK: KSM-66, Forms and How to Take It

Ashwagandha (Withania somnifera) is one of the most treasured herbs in Ayurveda and one of the most searched-for supplements in the UK. It is the root of a small evergreen shrub, dried and sold either as a powder or as a standardised extract such as KSM-66. This guide explains what ashwagandha is, the forms you can buy in the UK, how it is traditionally taken, what KSM-66 means, and how to choose a genuine, lab-tested product.

A note on wording: ashwagandha is often called an “adaptogen” online. Under UK advertising rules that word is treated as a health claim, so throughout this guide we describe ashwagandha by its traditional role in Ayurveda rather than making claims about what it does.

What is ashwagandha?

Ashwagandha is the root of the Withania somnifera shrub, a plant native to India and used in Ayurveda for thousands of years. Its name is often translated as “the smell of a horse”, a nod to the root’s distinctive aroma. In Ayurveda it is classified as a rasayana — a rejuvenating herb — and has traditionally been taken during busy or demanding periods of life. It is one of the few Ayurvedic herbs with strong mainstream recognition in the UK.

What is KSM-66 ashwagandha?

KSM-66 is a branded, standardised ashwagandha root extract, and it is one of the terms UK buyers search for most. “Standardised” means the extract is produced to a consistent specification batch after batch, and KSM-66 is made from the root only. When a product lists KSM-66 on the pack, it is telling you which extract has been used — useful information when you are comparing products.

Which forms of ashwagandha can you buy in the UK?

Ashwagandha is sold mainly in three forms:

• Capsules and tablets — the most popular UK format, convenient and pre-measured, often made with a standardised extract such as KSM-66. See, for example, Baidyanath Ashwagandha capsules.
• Powder (churna) — the traditional format, stirred into warm milk or water, such as Baidyanath Ashwagandhadi Churna.
• Blends — ashwagandha combined with other classic herbs, for example Jiva ashwagandha and brahmi.

You will find the full selection in our Stress & Sleep range and Energy & Vitality range.

How do you take ashwagandha?

Always follow the directions on the pack, as strength varies between products. As a general guide, ashwagandha capsules or tablets are taken at the count stated on the label, usually one to two a day with water. The traditional powder is stirred into warm milk — a preparation sometimes called “moon milk” — or into water. Directions like these describe how a product is used; they are not promises of any particular result.

Ashwagandha for women

Ashwagandha is used by both men and women, and “ashwagandha for women” is a common UK search. In Ayurveda it is classified as a rasayana and has traditionally been taken by women and men alike as part of everyday wellbeing routines. If you are pregnant, breastfeeding, taking any medication, or under medical supervision, speak to your doctor or pharmacist before taking ashwagandha.

How to choose a quality ashwagandha in the UK

Because ashwagandha is usually sourced from India and the market is crowded, quality and trust matter. Look for lab testing (genuine products are tested batch-by-batch for purity and screened for heavy metals), a clear specification (the botanical name Withania somnifera, the extract type such as KSM-66, the amount per serving and the count), authentic sourcing, and a real UK business that states clearly where it dispatches from. At KantiGlow we source authentically from India, lab-test every batch, and dispatch from India with UK delivery in 5–7 working days. Browse ashwagandha and calming herbs to compare products.

Ashwagandha in the classical texts

Ashwagandha is the root of Withania somnifera, a small shrub of the nightshade family grown across Rajasthan, Madhya Pradesh and Gujarat. The Sanskrit name means “smell of a horse”, after the root’s distinctive odour, and the Charaka Samhita lists it among the balya (strengthening) and rasayana (rejuvenative) herbs. The Bhavaprakasha Nighantu describes it as bitter, astringent and sweet in taste, light and unctuous in quality, heating in potency (ushna virya) and balancing to vata and kapha. The classical preparations are the root powder taken with warm milk and ghee, Ashwagandhadi Churna (a compound powder), Ashwagandharishta (a fermented liquid) and medicated ghee. The Ayurvedic Pharmacopoeia of India lists a traditional daily quantity of 3–6 g of root powder for adults; standardised extracts such as KSM-66 use far less because they are concentrated.

Comparing the ashwagandha brands sold in the UK

Patanjali, Dabur and Baidyanath sell root powder and root-powder capsules at the lowest prices; Himalaya’s Organic Ashwagandha is a certified-organic standardised extract; Zandu Ashwagandha Gold Plus and the newer Indian brands use KSM-66 or other branded extracts with a stated withanolide percentage; Jiva pairs ashwagandha with brahmi. The products below are in stock at KantiGlow and shipped from India — see our ashwagandha benefits and dosage guide for the detail behind each form.

Product	Form	Price
Jiva Ashwagandha & Brahmi Tablets 120	Tablets	£6.99
Baidyanath Ashwagandhadi Churna Powder 100g	Churna	£4.99
Dabur Ashwagandha Capsules 20	Capsules	£3.99
Patanjali Ashwagandha Churna Powder 100g	Churna	£3.99
Vedapure Ashwagandha with Turmeric & Black Pepper Capsules	Capsules	£15.99
Zandu Ashwagandha Gold Plus Capsules 60	Capsules	£11.99
Intimify Men’s Ayurvedic Blend with Ashwagandha & Gokshura Capsules	Capsules	£16.99
Sri Sri Tattva Ashwagandhadi Tablets 60	Tablets	£5.99
Cureveda Ashwagandha, Brahmi & Jatamansi Ayurvedic Tablets	Tablets	£23.99
Man Matters Shilajit with Ashwagandha, Gokshura & Safed Musli Capsules	Capsules	£12.99

Sources and further reading

• Ministry of Ayush — Ayurvedic Pharmacopoeia of India, Vol. I, monograph “Ashwagandha” (root).
• Ministry of Ayush, Government of India — The Ayurvedic Pharmacopoeia of India (monographs list botanical identity, parts used and traditional quantities).
• Charaka Samhita and Sushruta Samhita, the two foundational Ayurvedic texts, and the Bhavaprakasha Nighantu, the sixteenth-century materia medica in which most single herbs are classified.
• UK Food Standards Agency — guidance on food supplements and labelling; Advertising Standards Authority — rules on health claims for food supplements.
• MHRA — Traditional Herbal Registration scheme (explains the difference between a registered herbal medicine and a food supplement in the UK).

Frequently asked questions

What is ashwagandha?

Ashwagandha (Withania somnifera) is the root of a small shrub used in Ayurveda for thousands of years and classified as a rejuvenating rasayana herb. It is sold as capsules, tablets or traditional powder.

What is KSM-66 ashwagandha?

KSM-66 is a branded, standardised ashwagandha root extract made to a consistent specification. When it is named on a pack, it tells you which extract the product uses.

How do you take ashwagandha?

Follow the pack directions. Capsules and tablets are typically taken one to two a day with water; the traditional powder is stirred into warm milk or water.

Can women take ashwagandha?

Ashwagandha is used by both women and men as part of everyday wellbeing routines in Ayurveda. If you are pregnant, breastfeeding, taking medication or under medical supervision, check with your doctor or pharmacist first.

How do I know an ashwagandha product is genuine?

Look for batch lab-testing, a clear specification of the botanical name and extract type (e.g. KSM-66), transparent sourcing, and a UK-registered seller. KantiGlow lab-tests every batch and dispatches from India, with UK delivery in 5–7 working days.

Food supplement. Not a substitute for a varied, balanced diet and a healthy lifestyle. Do not exceed the recommended daily dose. Keep out of reach of young children. Store in a cool, dry place. If you are pregnant, breastfeeding or taking medication, consult a healthcare professional before use.

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• Shilajit vs Ashwagandha: How to Choose
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• Kalonji (Black Seed): A UK Guide