BioStacks
Best for
Ingredients (7)
Caffeine
100%Dose
100 mg
Target
100–400 mg
Form
—
L-Theanine
100%Dose
200 mg
Target
100–250 mg
Form
—
GS15-4 Panax ginseng
100%Dose
200 mg
Target
200–400 mg
Form
—
KSM-66 Ashwagandha
100%Dose
300 mg
Target
300–600 mg
Form
Premium
Zembrin extract
100%Dose
25 mg
Target
8–25 mg
Form
—
Other Ingredients (4)
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
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
How to Take It
Best taken in the morning
Contains Caffeine, which is stimulating — keep it to the morning. Ashwagandha is easier on the stomach taken with food.
With food
On the label
Take one packet in the morning on days you need to perform your best and remain calm, even in stressful conditions.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$99.00
Pricier than 99% of 53 korean ginseng 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. 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.