BioStacks
Best for
Ingredients (3)
L-Theanine
100%Dose
400 mg
Target
100–250 mg
Form
—
Phosphorus
40%Dose
40 mg
Target
100–500 mg
Form
Budget
Calcium
50 mgTrace amount — not scored
Other Ingredients (8)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Vegetable StearateLubricant
A plant-derived salt of stearic acid (typically magnesium or calcium) used as a tablet lubricant
Croscarmellose SodiumDisintegrant
Cross-linked cellulose derivative used as a superdisintegrant
GlycerinHumectant
Sweet-tasting liquid used in soft capsules and liquids
Hydroxypropyl CelluloseBinder
An inert modified-cellulose polymer used as a binder, film-former, and disintegrant.
HypromelloseCapsule
Plant-derived capsule material from cellulose
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 evening
Calming — common before bed, or in the morning when paired with caffeine for focus.
With or without food
On the label
Take one (1) tablet daily, or as recommended by a healthcare practitioner.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$21.00
Cheaper than 65% of 18 phosphorus 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.