BioStacks
Best for
Ingredients (8)
Vitamin B6
100%Dose
5 mg
Target
1.3–25 mg
Form
—
Pyridoxal 5-Phosphate
100%Dose
2 mg
Target
1.3–25 mg
Form
Premium
Pyridoxine Hydrochloride
100%Dose
2 mg
Target
1.3–25 mg
Form
Premium
Niacin
60%Dose
15 mg ne
Target
25–500 mg
Form
—
Biotin
3%Dose
25 mcg
Target
1000–5000 mcg
Form
—
Other Ingredients (11)
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.
BiotinFood
Vitamin B7, a water-soluble B-vitamin.
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
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
HypromelloseCapsule
Plant-derived capsule material from cellulose
NicotinamideVitamin
Amide form of vitamin B3 used for fortification; supports cellular energy and NAD+ synthesis without flushing
L-5-Hydroxytryptophan
Not reviewed yet
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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.