BioStacks
Best for
Ingredients (4)
Biotin
100%Dose
2400 mcg
Target
1000–5000 mcg
Form
—
Vitamin C
100%Dose
150 mg
Target
40–200 mg
Form
Budget
Hydrolyzed Collagen
30%Dose
1.5 g
Target
5–20 g
Form
Standard
Calcium
54 mgTrace amount — not scored
Other Ingredients (4)
Titanium DioxideColorant
Banned in the EU (2022) over concerns that its ultra-fine particles may damage DNA in gut cells. Still allowed in the US. Used only for white coloring — provides no health benefit.
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
GelatinCapsule
Protein derived from collagen, used in traditional capsule shells
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in 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.