BioStacks
Best for
Ingredients (18)
Lutein
100%Dose
15 mg
Target
10–20 mg
Form
—
Zeaxanthin
100%Dose
2.6 mg
Target
2–4 mg
Form
—
Zinc
100%Dose
16 mg
Target
15–30 mg
Form
Standard
Vitamin B12
40%Dose
100 mcg
Target
250–5000 mcg
Form
Premium
Copper
100%Dose
1000 mcg
Target
1000–2000 mcg
Form
Standard
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.
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
Purified WaterSolvent
Water meeting USP specifications used as solvent/vehicle in gummies and liquids
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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.