BioStacks
Best for
Ingredients (4)
Vitamin A
100%Dose
1500 mcg RAE
Target
700–1500 mcg
Form
Standard
FloraGLO Lutein
30%Dose
3 mg
Target
10–20 mg
Form
Premium
Zeaxanthin
25%Dose
0.5 mg
Target
2–4 mg
Form
—
AstaReal Astaxanthin
13%Dose
0.5 mg
Target
4–12 mg
Form
Premium
Other Ingredients (3)
Hypoallergenic Plant FiberFiller
Plant-derived cellulose fiber used as a hypoallergenic filler, common in Thorne and Pure Encapsulations products
Beetroot Juice PowderColorant
Natural red colorant and mild flavoring derived from beetroot; often spray-dried onto maltodextrin carrier
Capsule ShellCapsule
Generic capsule shell where the label does not specify the material. Common materials are hypromellose (HPMC) for vegetarian capsules and gelatin for traditional capsules — both are GRAS-listed and safe. Fish gelatin and pullulan variants also exist.
How to Take It
Take it anytime
Fat-soluble — take with a meal containing fat for better absorption. Time of day doesn't matter.
With a meal containing fat
On the label
As a dietary supplement, take 1 capsule daily, with a meal.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$30.60
Pricier than 89% of 79 vitamin A 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.