BioStacks
Best for
Ingredients (2)
Naturally occurring caffeine
100%Dose
220 mg
Target
100–400 mg
Form
—
Organic Guarana Extract
100%Dose
1000 mg
Target
50–500 mg
Form
—
Other Ingredients
No other ingredients listed
How to Take It
Best taken in the morning
Morning or early afternoon only — caffeine within 8 hours of bed measurably disrupts sleep.
With or without food
On the label
Mix our guarana with your favorite beverage for a clean energy drink that promotes focus and cognitive performance without any crashes or brain fog. Time for a new healthy habit of replacing coffee with guarana!
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 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.