BioStacks
Best for
Ingredients (9)
Zeaxanthin
94%Dose
1.9 mg
Target
2–4 mg
Form
—
Parry Organic Spirulina
100%Dose
1500 mg
Target
1000–3000 mg
Form
—
Beta-Carotene
100%Dose
2250 mcg
Target
700–1500 mcg
Form
Budget
Total Carotenoids
100%Dose
5625 mcg
Target
0–0 mcg
Form
—
Vitamin B12
1%Dose
1.5 mcg
Target
250–5000 mcg
Form
Not listed
Other Ingredients
No other ingredients listed
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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.