BioStacks
Ingredients (12)
L-Carnitine L-Tartrate
100%Dose
2000 mg
Target
500–2000 mg
Form
—
Caffeine Anhydrous
100%Dose
350 mg
Target
100–400 mg
Form
—
Beta-Alanine
100%Dose
3600 mg
Target
3200–6400 mg
Form
—
L-Theanine
100%Dose
350 mg
Target
100–250 mg
Form
—
Capsimax Extract
100%Dose
100 mg
Target
2–10 mg
Form
—
Other Ingredients (5)
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.
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Fruit Juice (unspecified)Colorant
Juice or juice concentrate used primarily for natural color and flavor in gummies
Calcium SilicateAnti-caking
Inorganic compound used as an anti-caking and flow agent in powdered supplements
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. Take it with food — the potassium in it is what makes this kind of product feel nauseating on an empty stomach.
With food
On the label
Mix 2 scoops with 8-12 fl oz of water, and take 15-30 minutes before your workout.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$49.99
Pricier than 82% of 118 hydration 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. 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.