Ashwagandha KSM-66., 120 capsules
£18.99 for 120 capsules at Protein Works. It carries more than one active ingredient, so it is not ranked against single-ingredient products. Each price below counts one ingredient only.
At one 600 mg dose a day, this pack lasts 50 days. A month is 30 days, so twelve of them is not quite a year.
How we worked it out
- Servings: 120 ÷ 1 per serving = 120
- In the pack: 120 × 250 mg = 30 g
- £18.99 ÷ 30 g × 600 mg = 38p per 600 mg
- A week 38p × 7 = £2.66 · a month × 30 = £11.39 · a year × 365 = £138.63
- 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.
How it compares: ashwagandha KSM-66
All 27, ranked →
Ranked purely by price per 600 mg. 40 combination products also contain ashwagandha.
On the label
- Ashwagandha · KSM-66
- 250 mg per serving (extract weight stated on the label)
- Pack
- 120 capsules · 120 servings · 1 capsule(s) a serving
- Cost per serving
- 16p (120 servings in the pack)
More label details
- Barcode
- 5061062525851
- Sold by
- Protein Works
- What the listing says
- “120 Capsules” · “Per 1 Capsule” · “[Ashwagandha KSM-66® Extract (12:1 Extract) ; 250mg]”
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One 600 mg dose is our comparison unit, not a recommendation.
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Filled in from the label’s serving: 1 capsule.
What you paid
Optional. At Protein Works today: £18.99.
“Order by” allows 5 working days’ delivery from Protein Works and your spare days.
Price history
No price change since 23 September 2026. Checked on 2 days, most recently 9 October 2026.
- Price at every check
- £18.99Protein Works
- First recorded
- £18.9923 Sept
- Checked on
- 2 dayssince 23 Sept
- First checked at Protein Works: £18.99
Questions about this product
How much does Protein Works Ashwagandha KSM-66. cost per 600 mg?
38p per 600 mg, from £18.99 for 120 capsules at Protein Works, checked on 9 October 2026.
How long does one pack last?
50 days at one 600 mg dose. The pack holds 30 g in total.
About Protein Works
Founded 2012 · Liverpool, England · Part of Lactalis
Protein Works is a British nutrition company founded in 2012 by Mark Coxhead, Nick Smith and Karl Jacobie. It is based at PW Campus in Speke, Liverpool, which opened in 2025 and replaced several sites in Runcorn.
All 149 Protein Works products, priced per doseVisit Protein Works (opens in a new tab)
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