Checked against public sources on August 1, 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.
| Vitamin C (Non-Acidic) (as IMMUNE N PLUS® Calcium Ascorbate) | 500 mg |
|---|---|
| Vitamin D3 (as Cholecalciferol) | 125 mcg |
| Vitamin K2 (as MK-7 Natural Bacillus Subtilis Natto) | 100 mcg |
| Zinc (as Zinc Bisglycinate Chelate) (Albion®) | 50 mg |
| Selenium (as Selenium Glycinate) (Albion®) | 150 mcg |
| Copper (as Copper Bisglycinate Chelate) (Albion®) | 3 mg |
| Quercetin (20:1 extract of Sophora Japonica Flower, offering an equivalent of 1,000mg of powder) | 1,000 mg |
| NAC (as N-Acetyl-L-Cysteine) | 600 mg |
Printed on the package: 100% BEST QUALITY · NON-GMO FORMULA · GLUTEN-FREE · THIRD PARTY PURITY ASSURED · NON GMO FORMULA · GLUTEN FREE · cGMP CERTIFIED
We read 8 lines from the package photograph. It is our transcript of the label, not the manufacturer’s panel, and it may be incomplete.
The public sources did not settle the marketing promises on this label.
Published research exists for ingredients in this formula. Whether this product’s doses match those studies could not be confirmed.
Ingredient research can support context, but it is not a trial of this exact product.
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.
“Made in USA” can describe only final bottling. Ingredient-sourcing records were not located for this product.
We looked and found no public proof. That does not count against the product.
HIGH POTENCY SUPERIOR ABSORPTION · 15 IN 1 ADVANCED COMPLEX · POWERFUL ANTIOXIDANT SUPPORT*
Headlines first. Open evidence only when you want the source trail.
This serving is about 1.2× the adult upper limit shown by NIH. The limit applies to adults; 100 mcg = 4,000 IU.
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.
Every ingredient shows its real amount — nothing is hidden in a proprietary blend.
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 findingA government label filing makes the listed formula easier to inspect and compare over time.
Label #272740 “Immune C Plus 12 in 1 Advanced Complex” (KAPPA NUTRITION), entered 2022-07-21, with the full Supplement Facts on file. Company on file: Manufacturer — Kappa Nutrition, Frisco, Tx.
Locked evidence record →Open the full source-linked findingA count that moves steadily is ordinary. A sudden burst is what deserves a closer look.
Written reviews rose from 15 to 36 between September 21, 2025 and July 11, 2026. The largest rise inside any single 30-day window was about 4, so the count moved in steps rather than in one burst.
Locked evidence record →Open the full source-linked findingThese are evidence gaps, not strikes against the product.
Filed address
6845 Solitude Creek Ct, Frisco, TEXAS 75036, UNITED STATES
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 ↗
We could not match an amount on this product to a studied range for the same ingredient, so these links are ingredient background rather than a measurement of this product.
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 50 mg of zinc per serving. Studies we found used 8 mg–40 mg a day, so this sits above that range.
Study ranges differ between trials and change as research changes. This is background reading, not a pass, a failure, or a recommendation.
$0.60 per labeled serving
matching UPC/GTIN · checked Aug 1, 2026
View on Amazon ↗We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search iHerb ↗We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search Target ↗We 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.
No official brand storefront is confirmed in this record. That is neutral, but it prevents a direct brand-price, label, review, and document check.
Reference prices only · no affiliate links · every compared seller must publish the matching UPC/GTIN.
The full report shows every source, the exact unresolved question, and the documentation that would settle it.
Record built August 02, 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.