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What it does
A combination of 2 label ingredients.
Theanine
Form not confirmedGrade —
May improve sleep quality and responses to short-term stress in adults; evidence remains limited.
Caffeine
Form not confirmedGrade —
Can improve alertness and some exercise performance in adults; effects depend on dose, timing and individual sensitivity.
Ingredients (2)
Other ingredients
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.
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
GelatinCapsule
Protein derived from collagen, used in traditional capsule shells
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Lab testing
How to take it
With or without food
On the label
Suggested use: As a dietary supplement, take 1 capsule daily with 8-12 oz of water or as directed by your healthcare professional.
Price check
$13.95
Near the median of 16 caffeine supplements
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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.
Not medical advice. Consult your healthcare professional.