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Cheapest Organic KSM-66 Ashwagandha Extract on iHerb

Ranked by real cost per 100 mg of Organic KSM-66 Ashwagandha Extract — cheapest value first.

Prices updated Jul 25, 2026 · 12 products · Prices in USD

The priciest option here costs about 32.0× more per 100 mg of Organic KSM-66 Ashwagandha Extract than the best-value pick Vitamatic. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 100 mg
1
Vitamatic, KSM-66®, 60 Vegetable Capsules
Vitamatic, KSM-66®, 60 Vegetable Capsules
Vitamatic
600 mg6014.990.042View on iHerb →
2
Planetary Herbals, KSM-66® Ashwagandha Root Extract, 60 Vegetarian Capsules (300 mg per Capsule)
Planetary Herbals, KSM-66® Ashwagandha Root Extract, 60 Vegetarian Capsules (300 mg per Capsule)
Planetary Herbals
600 mg309.370.052View on iHerb →
3
Planetary Herbals, KSM-66® Ashwagandha Root Extract, 120 Vegetarian Capsules (300 mg per Capsule)
Planetary Herbals, KSM-66® Ashwagandha Root Extract, 120 Vegetarian Capsules (300 mg per Capsule)
Planetary Herbals
600 mg6023.980.067View on iHerb →
4
Solaray, Her Life Stages, Libido , 60 VegCaps
Solaray, Her Life Stages, Libido , 60 VegCaps
Solaray
600 mg3020.690.115View on iHerb →
5
Zhou Nutrition, Organic Daily Blues, Blueberry, 4.22 oz (119.5 g)
Zhou Nutrition, Organic Daily Blues, Blueberry, 4.22 oz (119.5 g)
Zhou Nutrition
600 mg2523.490.157View on iHerb →
6
Live Conscious, Zenwell, 60 Capsules
Live Conscious, Zenwell, 60 Capsules
Live Conscious
600 mg3029.000.161View on iHerb →
7
Om Mushrooms, Mushroom Powder, 10 Mushroom Complex, Master Blend + Ashwagandha, 6.34 oz (180 g)
Om Mushrooms, Mushroom Powder, 10 Mushroom Complex, Master Blend + Ashwagandha, 6.34 oz (180 g)
Om Mushrooms
250 mg8038.870.194View on iHerb →
8
Himalaya, Organic Ashwagandha Gummies, Blackberry, 56 Gummies
Himalaya, Organic Ashwagandha Gummies, Blackberry, 56 Gummies
Himalaya
300 mg2817.990.214View on iHerb →
9
Om Mushrooms, Mushroom Powder, Master Blend + Ashwagandha, 3.17 oz (90 g)
Om Mushrooms, Mushroom Powder, Master Blend + Ashwagandha, 3.17 oz (90 g)
Om Mushrooms
250 mg4024.290.243View on iHerb →
10
Om Mushrooms, Master Blend Mushroom Capsules, 84 Vegetable Capsules
Om Mushrooms, Master Blend Mushroom Capsules, 84 Vegetable Capsules
Om Mushrooms
250 mg2826.990.386View on iHerb →
11
Onnit, Alpha Brain Focus Shot, Tropical, 6 Bottles, 2.5 fl oz (75 ml) Each
Onnit, Alpha Brain Focus Shot, Tropical, 6 Bottles, 2.5 fl oz (75 ml) Each
Onnit
300 mg620.641.15View on iHerb →
12
Onnit, Alpha Brain Focus Shot, Peach, 6 Bottles, 2.5 fl oz (75 ml) Each
Onnit, Alpha Brain Focus Shot, Peach, 6 Bottles, 2.5 fl oz (75 ml) Each
Onnit
300 mg623.991.33View on iHerb →

How we rank Organic KSM-66 Ashwagandha Extract

Two supplements can list the same dose per serving yet cost very differently once you account for how many servings are in the bottle. We calculate the total nutrient in each container (dose per serving × servings per container), divide the current price by that total, and rank by the resulting cost per unit. Lower is better. Because prices are refreshed automatically, this ranking reflects today's iHerb pricing rather than a snapshot from months ago.

Cost per unit is a starting point, not the whole story — the ideal form, third-party testing, and other ingredients matter too. Always check the label and consult a healthcare professional before starting a supplement.

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Prices update automatically and may differ from iHerb at checkout. Rankings are based on cost per unit of the listed nutrient and are for informational purposes only — not medical advice. Links to iHerb are affiliate links.