BioStacks
Best for
Ingredients (7)
Quercetin
100%Dose/day
1800 mg
Target
500–1000 mg
Form
—
L-Arginine
100%Dose/day
2250 mg
Target
2000–6000 mg
Form
—
Vitamin A
100%Dose/day
2025 mcg RAE
Target
700–1500 mcg
Form
Standard
Glucosamine Hydrochloride
100%Dose/day
1350 mg
Target
1000–1500 mg
Form
Premium
Citrus Bioflavonoids
100%Dose/day
2250 mg
Target
250–1000 mg
Form
—
Other Ingredients (2)
HypromelloseCapsule
Plant-derived capsule material from cellulose
Calcium LaurateEmulsifier
Calcium salt of lauric acid used as a lubricant
How to Take It
Take it anytime
Poorly absorbed on its own — take with a fat-containing meal.
With a meal containing fat
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.
Split into 3 doses across the day
On the label
3 capsules, three times daily; best when taken with kava kava extract, 50 mg of kavalactones, three times daily.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$62.99
Pricier than 92% of 292 immune 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.