BioStacks
Best for
Ingredients (8)
Vitamin B6
100%Dose
50 mg
Target
25–100 mg
Form
—
Pyridoxal 5-Phosphate
100%Dose
35 mg
Target
25–100 mg
Form
Premium
Vitamin B12
100%Dose
500 mcg
Target
250–5000 mcg
Form
Premium
Pyridoxine Hydrochloride
60%Dose
15 mg
Target
25–100 mg
Form
Premium
Folic Acid
100%Dose
400 mcg
Target
400–800 mcg
Form
Budget
Other Ingredients (12)
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.
Betaine (Anhydrous/Monohydrate)Food
Betaine (trimethylglycine); a food-derived compound sometimes listed among other ingredients.
Folic AcidVitamin
Synthetic form of vitamin B9 used for fortification — supports red blood cell formation and neural tube development. Pharmacologically distinct from the natural/active form (5-methyltetrahydrofolate, methylfolate).
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Lithothamnion CalcareaFiller
Calcified red seaweed used as a whole-food tablet base and natural calcium/magnesium source (common in food-based multivitamin lines)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
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.
Sodium Copper ChlorophyllinColor
Water-soluble semisynthetic chlorophyll derivative used as a green colorant
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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.