BioStacks
Best for
Ingredients (6)
Bioperine Nature's Thermonutrient
100%Dose
5 mg
Target
5–20 mg
Form
—
GABA
100%Dose
250 mg
Target
100–300 mg
Form
—
L-Theanine
50%Dose
50 mg
Target
100–250 mg
Form
—
L-Tyrosine
20%Dose
100 mg
Target
500–2000 mg
Form
—
Taurine
10%Dose
100 mg
Target
1000–3000 mg
Form
—
Other Ingredients (5)
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.
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Rice HullsAnti-caking
Ground outer husk of rice grains used as a plant-based flow and anti-caking agent
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
HypromelloseCapsule
Plant-derived capsule material from cellulose
How to Take It
Best taken in the evening
Used in the evening for relaxation. Black Pepper Extract is easier on the stomach taken with food.
With food
Tyrosine does better on an empty stomach, but something else in this bottle needs food. Taking the whole product with a meal is the better trade — an upset stomach is why most people stop.
Keep it away from protein-heavy meals
On the label
As a dietary supplement, take one capsule daily or as directed by a healthcare practitioner.
General guidance based on the ingredients, not a substitute for the label or your doctor.
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$12.39
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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. studied 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.