BioStacks
Best for
Ingredients (4)
Vitamin C
100%Dose
200 mg
Target
50–250 mg
Form
Budget
Nettle Extract
67%Dose
200 mg
Target
300–600 mg
Form
Premium
Quercetin Phospholipid
50%Dose
250 mg
Target
500–1000 mg
Form
—
N-Acetyl-L-Cysteine
17%Dose
100 mg
Target
600–1800 mg
Form
—
Other Ingredients (4)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Ascorbyl PalmitateAntioxidant
Fat-soluble form of vitamin C used as preservative
HypromelloseCapsule
Plant-derived capsule material from cellulose
Purified WaterSolvent
Water meeting USP specifications used as solvent/vehicle in gummies and liquids
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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.