BioStacks
Best for
Ingredients (8)
Caffeine Anhydrous
100%Dose
350 mg
Target
100–400 mg
Form
—
Alpha-Glyceryl Phosphoryl Choline (GPC) Powder 50%
100%Dose
300 mg
Target
100–500 mg
Form
—
Beta-Alanine
100%Dose
3600 mg
Target
3200–6400 mg
Form
—
L-Theanine
100%Dose
350 mg
Target
100–250 mg
Form
—
Potassium
100%Dose
220 mg
Target
99–500 mg
Form
Standard
Other Ingredients (4)
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.
Paprika OleoresinColorant
Natural orange-red colorant extracted from sweet red peppers (Capsicum annuum); the pigments are capsanthin and capsorubin
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Stevia ExtractSweetener
Zero-calorie natural sweetener extracted from the leaves of Stevia rebaudiana
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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.