The label promises 10 mg per serving. The panel says 10 mg. They match.

Viva Naturals Elderberry with Vitamin C and Zinc
Checked against public sources between July 22 and July 24, 2026 · LookCloser does not sell or recommend supplements.
Does the marketing hold up?
Vitamin D is above the adult upper limit. The panel lists 125 mcg vitamin d. NIH gives 100 mcg as the adult Tolerable Upper Intake Level for adults; 100 mcg = 4,000 IU. That is about 1.2 times the limit.
“Couldn’t verify” means we looked and found no public proof — not a mark against the product. Most supplement claims cannot be independently verified by anyone, so grey is the normal state of this industry.
What the Supplement Facts panel says
| Vitamin C (as L-Ascorbic acid) | 400 mg |
|---|---|
| Zinc (as Zinc oxide) | 10 mg |
| Elderberry (4:1) Extract (Sambucus nigra, fruit) Equivalent to 4000 mg fresh fruit | 1000 mg |
| Ginger (8:1) Extract (Zingiber officinale, root) Equivalent to 2400 mg fresh root | 300 mg |
Printed on the package: THIRD PARTY TESTED · PURITY & POTENCY · TESTED · HALAL · NON GMO · DAIRY FREE · GLUTEN FREE
We read 4 lines from the package photograph. It is our transcript of the label, not the manufacturer’s panel, and it may be incomplete.
The checks, one by one
1 promise checks out. 2 could not be fully confirmed from public sources.
✓Matches the label1
◐Partly confirmed1
Ingredient evidence exists; on dose: label states 10 mg/serving — about 25% of the adult daily reference (adult RDA 8–11 mg; NIH sets 40 mg/day as the tolerable upper limit for adults). A single serving isn’t meant to supply a full day, so this is context, not a shortfall. Caveat: chelate and gluconate labels may state compound mass rather than elemental zinc.
Ingredient research can support context, but it is not a trial of this exact product.
?Couldn’t verify independently1
No named laboratory or lot-specific certificate was found for this exact product. No exact brand product page was available for a document check. NSF, IFOS, USP, and Informed-Sport were not checked in this record. This is a public-evidence limit, not a finding that testing did not occur.
We looked and found no public proof. That does not count against the product.
Marketing language, not scored
POWERFUL ANTIOXIDANT FORMULA*
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
Vitamin D: 125 mcg on the label; adult upper limit 100 mcg.
This serving is about 1.2× the adult upper limit shown by NIH. The limit applies to adults; 100 mcg = 4,000 IU.
Evidence and sources
The panel lists 125 mcg vitamin d. NIH gives 100 mcg as the adult Tolerable Upper Intake Level for adults; 100 mcg = 4,000 IU. That is about 1.2 times the limit.
Listing claim matches the Supplement Facts panel
The label promise and the Supplement Facts amount agree.
Evidence and sources
The listing claims 10 mg; the photo-read Supplement Facts panel shows Zinc (as Zinc oxide) at 10 mg per serving — the listing text and its photo-read panel agree; this is internal consistency, not independent testing.
Locked evidence record →Open the full source-linked findingEvery ingredient shows its amount · 4 ingredients listed.
Every ingredient shows its real amount — nothing is hidden in a proprietary blend.
Evidence and sources
The panel gives a per-ingredient amount rather than hiding quantities inside a proprietary blend, so each one can be compared to published research.
Locked evidence record →Open the full source-linked findingRegistered in NIH's supplement label database (DSLD)
A government label filing makes the listed formula easier to inspect and compare over time.
Evidence and sources
Label #295353 “Elderberry, Vitamin C + Zinc” (Viva Naturals), entered 2023-05-24, with the full Supplement Facts on file. Company on file: Distributor — Viva Naturals Inc., New York, NY.
Locked evidence record →Open the full source-linked findingWhat remains open 1
- Barcode checksum is valid; no independent product record was found.
These are evidence gaps, not strikes against the product.
Filed address
2005 Sheppard Avenue E, Suite 701, North York, Canada M2J5B4, CANADA
USPTO identifies the public owner or applicant behind this brand wordmark. This does not by itself identify the product manufacturer or prove where the product was made. Open USPTO source ↗
Dose and research context
The label amount is shown beside the range used in the linked ingredient studies.
Zinc
10 mg per serving — within the 8–40 mg/day used in the linked studies.
What the research says about these amounts
Not a score. Studies disagree with each other and change over time, so this sits beside the evidence rather than counting toward it — it is here so you can read the sources yourself.
The panel lists 10 mg of zinc per serving. Studies we found used 8 mg–40 mg a day, so this sits inside that range.
Study ranges differ between trials and change as research changes. This is background reading, not a pass, a failure, or a recommendation.
Price check for this exact product
Amazon
Exact UPC/GTIN match$0.37 per labeled serving
matching UPC/GTIN · checked Aug 29, 2026
View on Amazon ↗iHerb
Not confirmedWe only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search iHerb ↗Target
Not confirmedWe only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search Target ↗Walmart
Not confirmedWe only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search Walmart ↗Only one exact price was available at build time; prices change by date, seller, and promotion.
Reference prices only · no affiliate links · every compared seller must publish the matching UPC/GTIN.
Want to inspect the evidence?
The full report shows every source, the exact unresolved question, and the documentation that would settle it.
Record built September 03, 2026. Sources: source listing observed at check time · USPTO Trademark Search · Keepa exact-listing history · NIH / published research · certification and regulator records where available. LookCloser publishes evidence and gaps; it does not advise for or against any supplement. Evidence-based corrections welcome.