BioStacks
Best for
Ingredients (7)
Vitamin D3
100%Dose/day
2000 IU
Target
1000–5000 IU
Form
Premium
L-Carnitine L-Tartrate
100%Dose/day
746 mg
Target
500–2000 mg
Form
—
L-Carnitine
100%Dose/day
500 mg
Target
500–2000 mg
Form
—
Coenzyme Q10
100%Dose/day
100 mg
Target
100–300 mg
Form
—
Hawthorn extract
100%Dose/day
300 mg
Target
160–900 mg
Form
—
Other Ingredients (4)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
HypromelloseCapsule
Plant-derived capsule material from cellulose
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
How to Take It
Take it anytime
Fat-soluble — take with your largest fat-containing meal. Time of day doesn't matter.
With a meal containing fat
Split into 2 doses across the day
On the label
Take 1 capsule twice daily with food.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$24.49
Near the median 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.