BioStacks
Best for
Ingredients (2)
Caffeine Anhydrous
100%Dose
200 mg
Target
100–400 mg
Form
—
Calcium
25 mgTrace amount — not scored
Other Ingredients (4)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
How to Take It
Best taken in the morning
Morning or early afternoon only — caffeine within 8 hours of bed measurably disrupts sleep.
With or without food
On the label
As a dietary supplement, take one (1) tablet, up to three times daily. Allow 3 to 4 hours between servings. Do not exceed 3 tablets daily.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$6.99
Cheaper than 95% of 660 calcium 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.