BioStacks
Best for
Ingredients (3)
Vitamin C
100%Dose
60 mg
Target
40–200 mg
Form
Budget
Verisol® Bioactive Collagen Peptides®
50%Dose
2.5 g
Target
5–20 g
Form
Premium
Vitamin A
43%Dose
300 mcg RAE
Target
700–1500 mcg
Form
Standard
Other Ingredients (6)
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.
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
GlycerinHumectant
Sweet-tasting liquid used in soft capsules and liquids
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
Vegetable/Confectioner's Glaze & WaxCoating
Plant-derived glaze or wax used as a tablet coating/polish.
How to Take It
Take it anytime
Take it with a meal containing fat — the vitamin A in it absorbs poorly without one.
With a meal containing fat
On the label
Adults take three (3) tablets once daily.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$20.00
Near the median of 79 vitamin A 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. 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.