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
How to Take It
Best taken in the morning
The Vitamin B12 in it is what pulls this toward the morning. Take it with a meal containing fat — the vitamin A in it absorbs poorly without one.
With a meal containing fat
On the label
Take 3 tablets daily.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$27.99
Pricier than 75% of 29 spirulina 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. 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.