BioStacks
Best for
Ingredients (9)
Caffeine
100%Dose
180 mg
Target
100–400 mg
Form
—
Vitamin B6
100%Dose
5.1 mg
Target
1.3–25 mg
Form
—
Green Tea Extract
100%Dose
375 mg
Target
200–500 mg
Form
—
L-Theanine
100%Dose
125 mg
Target
100–250 mg
Form
—
BioPerine
100%Dose
5.1 mg
Target
5–20 mg
Form
—
Other Ingredients (2)
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.
Purified WaterSolvent
Water meeting USP specifications used as solvent/vehicle in gummies and liquids
How to Take It
Best taken in the morning
Contains Caffeine, which is stimulating — keep it to the morning. What's in this 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 iron-rich meals and protein-heavy meals
Space it a couple of hours from Iron
On the label
Consume 3 capsules daily. Best taken before exercise. On non-excercise days, consume 1 capsule in the monring, afternoon and evening. Contains caffeine (180mg/serving). Not recommended for children or pregnant women. Consume 3 capsules daily. Best taken on an empty stomach before exercise. On non-exercise days, consume 1 capsule in the morning, afternoon and evening.
General guidance based on the ingredients, not a substitute for the label or your doctor.
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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.