Best for
Score Breakdown
Ingredients (6)
Vitamin D
100%Dose
1000 IU
Target
1000–5000 IU
Form
Premium
Vitamin C
100%Dose
250 mg
Target
50–250 mg
Form
Budget
N-Acetyl-L-Cysteine
75%Dose
450 mg
Target
600–1800 mg
Form
—
Zinc
50%Dose
7.5 mg
Target
15–30 mg
Form
Standard
European Elder (Elderberry) (Sambucus nigra) extract
67%Dose
200 mg
Target
300–600 mg
Form
—
Other Ingredients (2)
Ascorbyl PalmitateAntioxidant
Fat-soluble form of vitamin C used as preservative
Capsule ShellCapsule
Generic capsule shell where the label does not specify the material. Common materials are hypromellose (HPMC) for vegetarian capsules and gelatin for traditional capsules — both are GRAS-listed and safe. Fish gelatin and pullulan variants also exist.
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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.