BioStacks
Best for
Ingredients (2)
Berberine
100%Dose/day
500 mg
Target
500–1500 mg
Form
Premium
Green Coffee Bean Extract
100%Dose/day
400 mg
Target
200–800 mg
Form
—
Other Ingredients (5)
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.
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
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
Take with meals — its glucose effects act on the food you're eating. Usually split 2–3 times daily.
With food
Split into 2 doses across the day
On the label
2 capsules daily with a meal or as directed by a physician. Consult a physician for use beyond 3 months
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
C$27.79≈ $20.29
Cheaper than 76% of 90 berberine HCl supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and 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. clinical 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.