BioStacks
Best for
Ingredients (4)
Organic KSM-66 Ashwagandha (root extract)
100%Dose
600 mg
Target
300–600 mg
Form
Premium
Shatavari (root extract)
30%Dose
150 mg
Target
500–3000 mg
Form
—
Fenugreek (seed)
20%Dose
100 mg
Target
500–1000 mg
Form
—
L-Arginine HCl
3%Dose
50 mg
Target
2000–6000 mg
Form
—
Other Ingredients (4)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
HypromelloseCapsule
Plant-derived capsule material from cellulose
How to Take It
Best taken in the evening
KSM-66 is root-only and less sedating than Sensoril. Trials have dosed it both morning and evening, so either works — take it with food.
With food
Arginine does better on an empty stomach, but something else in this bottle needs food. Taking the whole product with a meal is the better trade — an upset stomach is why most people stop.
On the label
Take 2 vegcaps daily.
General guidance based on the ingredients, not a substitute for the label or your doctor.
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$20.69
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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.