BioStacks
Ingredients (4)
Horse Chestnut extract
100%Dose
300 mg
Target
300–600 mg
Form
—
GrapeSeedRich extract
33%Dose
50 mg
Target
150–600 mg
Form
—
Proanthocyanidins
25%Dose
38 mg
Target
150–300 mg
Form
—
Escin
18%Dose
54 mg
Target
300–600 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
GelatinCapsule
Protein derived from collagen, used in traditional capsule shells
How to Take It
Take it anytime
Timing doesn't matter for this one — taking it consistently does.
With or without food
On the label
1 capsule every 12 hours or as directed by a health professional.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$12.57
Cheaper than 95% of 52 grape seed extract 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.