BioStacks
Best for
Ingredients (8)
Zeaxanthin
100%Dose
6 mg
Target
2–4 mg
Form
—
Vitamin C
24%Dose
60 mg
Target
250–2000 mg
Form
Budget
Blueberry
50%Dose
100 mg
Target
200–1000 mg
Form
—
Lutein
30%Dose
3 mg
Target
10–20 mg
Form
—
Bilberry fruit extract
13%Dose
10 mg
Target
80–500 mg
Form
—
Other Ingredients (7)
SucroseSweetener
Added sugars and high glycemic load; dental caries risk
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Gum AcaciaBinder
Natural plant gum (acacia) used as a binder, stabilizer, and emulsifier in foods and supplements
StarchBinder
Carbohydrate polymer used as a binder, filler, and disintegrant in tablets and capsules
Calcium CarbonateBuffer
Common calcium salt used as a buffering agent, filler, or mineral fortification in supplements
HypromelloseCapsule
Plant-derived capsule material from cellulose
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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.