BioStacks
Best for
Ingredients (4)
Yellow Dock
100%Dose/day
500 mg
Target
100–1000 mg
Form
—
Dandelion
100%Dose/day
500 mg
Target
500–1500 mg
Form
—
Milk Thistle
100%Dose/day
1400 mg
Target
150–600 mg
Form
Not listed
Beet
7%Dose/day
200 mg
Target
3000–6000 mg
Form
—
Other Ingredients (4)
Rice FlourFiller
Rice-based ingredients carry risk of inorganic arsenic contamination (FDA and Consumer Reports). Rice accumulates arsenic from soil at higher rates than other grains. Used as a cheap filler — adds nothing beneficial.
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Capsule ShellCapsule
Generic capsule shell where the label does not specify the material. Common materials are hypromellose (HPMC) for vegetarian capsules and gelatin for traditional capsules — both are GRAS-listed and safe. Fish gelatin and pullulan variants also exist.
How to Take It
Take it anytime
Silymarin barely dissolves in water — a fat-containing meal meaningfully improves absorption.
With a meal containing fat
Split into 2 doses across the day
On the label
As a dietary supplement, take two vegan capsules two times per day with water.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$12.09
Cheaper than 84% of 89 milk thistle supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.