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Botanicals & extracts

Ashwagandha KSM-66 600mg 30 Capsules

£11.40 for 30 capsules at Holland & Barrett. That works out at 38p per 600 mg, which ranks it 15th of the 27 ashwagandha KSM-66 products we price across 10 UK retailers.

What it really costs, per 600 mg38pOne 600 mg dose is our comparison unit for ashwagandha. It is not a recommendation.

A day38p

A week£2.66

A month£11.40

A year£138.70

At one 600 mg dose a day, this pack lasts 30 days. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Servings: 30 ÷ 1 per serving = 30
In the pack: 30 × 600 mg = 18 g
£11.40 ÷ 18 g × 600 mg = 38p per 600 mg
A week 38p × 7 = £2.66 · a month × 30 = £11.40 · a year × 365 = £138.70
Amount per serving: extract weight stated on the label.

The standard dose is a comparison unit, not a recommendation. Always confirm the price on the retailer's site. How we compare everything.

Cheaper ashwagandha KSM-66

All 27, ranked →

KSM-66® Ashwagandha 600mgSimply Supplements · 600 mg a serving · £8.24 a month · a pack lasts 2 months27p£16.49View at Simply Supplements

AshwagandhaHealf · 600 mg a serving · £9.50 a month · a pack lasts 2 months32p£18.99View at Healf

KSM Ashwagandha CapsulesBulk · 500 mg a serving · £9.59 a month · a pack lasts 25 days32p£7.99View at Bulk

Ashwagandha 500mgHealf · 500 mg a serving · £10.07 a month · a pack lasts 50 days34p£16.79View at Healf

Transparent LabsKSM-66 Ashwagandha 600mgHealf · 600 mg a serving · £10.99 a month · a pack lasts 2 months37p£21.99View at Healf

This productHolland & Barrett · 600 mg a serving · £11.40 a month · a pack lasts 30 days38pshown above

Cheapest anywhere: 15p per 600 mg at Myprotein, £7.00 a month less than this one at the same 600 mg dose.

Ranked purely by price per 600 mg. 40 combination products also contain ashwagandha.

On the label

Ashwagandha · KSM-66: 600 mg per serving (extract weight stated on the label)
Pack: 30 capsules · 30 servings · 1 capsule(s) a serving
Cost per serving: 38p (30 servings in the pack)

More label details

Sold by: Holland & Barrett
What the listing says: “30 Capsules” · “Each 1 Capsule/capsules contains” · “KSM-66® Ashwagandha Root Extract (Withania somnifera) ; 600mg”

Ingredients

KSM-66® Ashwagandha Root Extract (Withania somnifera), Capsule Shell (Hydroxypropyl Methyl Cellulose).

From the Holland & Barrett listing. Check the pack itself if you have an allergy: labels mark allergens in bold.

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Daily dosemgFordays

One 600 mg dose is our comparison unit, not a recommendation.

Price history

2 price changes since 17 September 2026. Checked on 3 days, most recently 22 October 2026.

Lowest recorded: £8.1417 Sept
Highest recorded: £16.299 Oct
First recorded: £8.1417 Sept
Checked on: 3 dayssince 17 Sept

Pack price at each check.

22 Oct Down at Holland & Barrett: £16.29 → £11.40 (−30%)
9 Oct Up at Holland & Barrett: £8.14 → £16.29 (+100%)
17 SeptFirst checked at Holland & Barrett: £8.14

Questions about this product

How much does Holland & Barrett Ashwagandha KSM-66 600mg 30 Capsules cost per 600 mg?

38p per 600 mg, from £11.40 for 30 capsules at Holland & Barrett, checked on 22 October 2026.

Is it the cheapest ashwagandha KSM-66 in the UK?

No, it is 15th of 27. Ashwagandha KSM66 Capsules at Myprotein works out at 15p per 600 mg.

How long does one pack last?

30 days at one 600 mg dose. The pack holds 18 g in total.

About Holland & Barrett

Founded 1870 · Nuneaton, England · Part of L1 Retail (LetterOne)

Holland & Barrett is a health and wellness retailer founded in 1870, when Alfred Slapps Barrett and Major William Holland opened a grocery shop in Bishop's Stortford. It is based in Nuneaton, Warwickshire, and has been owned by LetterOne's L1 Retail since 2017.

All 32 Holland & Barrett products, priced per dose Visit Holland & Barrett (opens in a new tab)

Keep comparing

All ashwagandhaEvery form, cheapest per 600 mg first Ashwagandha guideWhat it is, why people take it, how the forms differ Holland & BarrettAll 32 products from this brand, per dose Botanicals & extractsEverything else we price in this category Ashwagandha price historyEvery ashwagandha product's price per dose and price history Build a basketThe cheapest way to buy several at once How we compareWhere every number on this page comes from