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Cheapest Milk Thistle on iHerb

Ranked by real cost per 100 mg of Milk Thistle — cheapest value first.

Prices updated Jul 25, 2026 · 15 products · Prices in USD

The priciest option here costs about 696.3× more per 100 mg of Milk Thistle than the best-value pick California Gold Nutrition. 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
California Gold Nutrition, Silymarin Complex with Milk Thistle Extract Plus Dandelion, Artichoke, Ginger, and BioPerine®, 360 Veggie Capsules
California Gold Nutrition, Silymarin Complex with Milk Thistle Extract Plus Dandelion, Artichoke, Ginger, and BioPerine®, 360 Veggie Capsules
California Gold Nutrition
300 mg36031.040.029View on iHerb →
2
NOW Foods, Milk Thistle Extract with Turmeric, 120 Veg Capsules
NOW Foods, Milk Thistle Extract with Turmeric, 120 Veg Capsules
NOW Foods
300 mg6013.460.075View on iHerb →
3
Bio Nutrition, Liver Wellness, 60 Vegetarian Capsules
Bio Nutrition, Liver Wellness, 60 Vegetarian Capsules
Bio Nutrition
500 mg3016.780.112View on iHerb →
4
NOW Foods, Red Yeast Rice, 120 Veg Capsules
NOW Foods, Red Yeast Rice, 120 Veg Capsules
NOW Foods
210 mg6030.610.243View on iHerb →
5
NOW Foods, Red Yeast Rice, 60 Veg Capsules
NOW Foods, Red Yeast Rice, 60 Veg Capsules
NOW Foods
210 mg3015.910.253View on iHerb →
6
Irwin Naturals, 2-In-1 Cleanse & Flush Weight Loss Support, 60 Liquid Soft-Gels
Irwin Naturals, 2-In-1 Cleanse & Flush Weight Loss Support, 60 Liquid Soft-Gels
Irwin Naturals
223 mg3019.990.300View on iHerb →
7
Gaspari Nutrition, Anavite® Multi-Pack, 30 Packets
Gaspari Nutrition, Anavite® Multi-Pack, 30 Packets
Gaspari Nutrition
450 mg3052.990.393View on iHerb →
8
Protocol for Life Balance, Red Yeast Rice Plus with CoQ10, Milk Thistle & Alpha-Lipoic Acid, 90 Veg Capsules
Protocol for Life Balance, Red Yeast Rice Plus with CoQ10, Milk Thistle & Alpha-Lipoic Acid, 90 Veg Capsules
Protocol for Life Balance
210 mg4542.000.444View on iHerb →
9
Zhou Nutrition, 3 Day Renew, Digestive Health Reset, 27 Veg Caps
Zhou Nutrition, 3 Day Renew, Digestive Health Reset, 27 Veg Caps
Zhou Nutrition
116 mg919.391.86View on iHerb →
10
Metagenics, Axis Endo™, Mango , 1 lb 3.26 oz (546 g)
Metagenics, Axis Endo™, Mango , 1 lb 3.26 oz (546 g)
Metagenics
280 mg1481.952.09View on iHerb →
11
Frontier Co-op, Whole Milk Thistle Seed, 16 oz (453 g)
Frontier Co-op, Whole Milk Thistle Seed, 16 oz (453 g)
Frontier Co-op
3 g15113.102.89View on iHerb →
12
Vibrant Health, Green Vibrance® +25 Billion Probiotics, Version 21.0, 15 To Go Packets, 5.82 oz (165 g)
Vibrant Health, Green Vibrance® +25 Billion Probiotics, Version 21.0, 15 To Go Packets, 5.82 oz (165 g)
Vibrant Health
55 mg1542.885.20View on iHerb →
13
Vibrant Health, Maximum Vibrance®, Version 7.0, Vanilla Bean, 21.5 oz (610 g)
Vibrant Health, Maximum Vibrance®, Version 7.0, Vanilla Bean, 21.5 oz (610 g)
Vibrant Health
55 mg1579.209.60View on iHerb →
14
Vibrant Health, Maximum Vibrance®, Version 7, Chocolate Chunk, 23.2 oz (659 g)
Vibrant Health, Maximum Vibrance®, Version 7, Chocolate Chunk, 23.2 oz (659 g)
Vibrant Health
55 mg1579.209.60View on iHerb →
15
Himalaya, PartySmart® Electrolytes, Lemon Lime, 6 Stick Packs, 0.53 oz (15 g) Each
Himalaya, PartySmart® Electrolytes, Lemon Lime, 6 Stick Packs, 0.53 oz (15 g) Each
Himalaya
10 mg611.9919.98View on iHerb →

How we rank Milk Thistle

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.