BioStacks
Best for
Ingredients (6)
Caffeine
100%Dose
200 mg
Target
100–400 mg
Form
—
Vitamin B6
40%Dose
10 mg
Target
25–100 mg
Form
Premium
Vitamin B12
100%Dose
500 mcg
Target
250–5000 mcg
Form
Budget
Guarana extract
Amount not found
Yerba Mate extract
Amount not found
Other Ingredients (5)
SucroseSweetener
Added sugars and high glycemic load; dental caries risk
Natural FlavorsFlavor
Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.
Malic AcidAcidulant
Naturally occurring organic acid found in apples, used as a flavor enhancer and acidulant in supplements
Purified WaterSolvent
Water meeting USP specifications used as solvent/vehicle in gummies and liquids
Stevia ExtractSweetener
Zero-calorie natural sweetener extracted from the leaves of Stevia rebaudiana
How to Take It
Best taken in the morning
Contains Caffeine, which is stimulating — keep it to the morning. Vitamin B6 is easier on the stomach taken with food.
With food
On the label
As a dietary supplement for adults, take one (1) full bottle
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.