BioStacks
Best for
Ingredients (4)
Biotin
100%Dose/day
20000 mcg
Target
1000–5000 mcg
Form
—
NAC
83%Dose/day
500 mg
Target
600–1800 mg
Form
—
PABA
100%Dose/day
150 mg
Target
30–400 mg
Form
—
Inositol
15%Dose/day
300 mg
Target
2000–4000 mg
Form
—
Other Ingredients (2)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
How to Take It
Take it anytime
Take it between meals, away from food.
On an empty stomach
Split into 2 doses across the day
On the label
Take 1 capsule two times per day with meals or as directed by a healthcare professional.
Labels usually say “with food” because it's gentler on the stomach, not because it absorbs better. Fasted absorbs more — start there, and switch to a light meal if it bothers you.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$27.99
Near the median of 68 inositol 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.