BioStacks
Best for
Ingredients (8)
Black Cohosh Extract
100%Dose/day
90 mg
Target
20–160 mg
Form
—
Chasteberry Extract
100%Dose/day
150 mg
Target
20–40 mg
Form
Standard
Damiana Leaf
100%Dose/day
450 mg
Target
100–1000 mg
Form
—
Magnesium
100%Dose/day
150 mg
Target
100–400 mg
Form
Budget
Ginkgo biloba Leaf Extract
25%Dose/day
30 mg
Target
120–240 mg
Form
—
Other Ingredients (5)
MaltodextrinBinder
Spikes blood sugar faster than table sugar (glycemic index 85–105). Research links it to gut bacteria changes that may promote intestinal inflammation (Nickerson et al. 2015). Used as a cheap filler — adds nothing beneficial.
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
Calcium CarbonateBuffer
Common calcium salt used as a buffering agent, filler, or mineral fortification in supplements
HypromelloseCapsule
Plant-derived capsule material from cellulose
How to Take It
Best taken in the evening
Magnesium oxide is poorly absorbed (~4%) and the most laxative form. Most of a dose stays in the gut, which is why it's mainly used for constipation — a poor pick if you're supplementing for magnesium itself.
With or without food
Space it a couple of hours from Iron and Calcium
Label directs 3 servings — keep one for the evening
On the label
As a dietary supplement, take one veggie capsule three to four times per day with water.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$14.79
Cheaper than 93% of 150 heart 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.