Published research exists for ingredients in this formula. Whether this product’s doses match those studies could not be confirmed.

EZC Pak 5-Day Tapered Immune Support Booster
Checked against public sources on August 9, 2026 · LookCloser does not sell or recommend supplements.
Does the marketing hold up?
Every ingredient shows its amount · 3 ingredients listed. Every ingredient shows its real amount — nothing is hidden in a proprietary blend.
“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 | 250 mg |
|---|---|
| Zinc (as Zinc Acetate Dihydrate USP) | 25 mg |
| Proprietary Echinacea blend (Echinacea purpurea root, seed and aerial parts) | 550 mg |
Printed on the package: ORGANIC ECHINACEA · VEGETARIAN CAPSULES · NO ADDED SUGAR · GLUTEN FREE · Certified Organic
We read 3 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 needs a closer look.
◐Partly confirmed1
Ingredient research can support context, but it is not a trial of this exact product.
△Claimed without support found1
We found no named, citable study of this product or formula. The claim may rest on ingredient research rather than a trial of this product.
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
Every ingredient shows its amount · 3 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 findingWhat remains open 1
- No FDA recall matched this brand in the current search.
These are evidence gaps, not strikes against the product.
Filed address
4017 WASHINGTON ROAD, SUITE 319, CANONSBURG, PENNSYLVANIA 15317, 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 ↗
Dose and research context
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.
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 25 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.
Where you can check or buy it
Open related seller leads before buying, then confirm the flavor, count, and serving size. Their prices are visible, but LookCloser does not claim savings until the pages share a UPC/GTIN.
Amazon
Submitted listingLowest New observed via Keepa on 2026-08-10.
View on Amazon ↗Brand website
Official storefrontOpen the brand storefront to search manually.
No defensible same-product page was saved from the brand catalog.
Check brand website ↗iHerb
Not confirmedNo matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.
Search iHerb ↗Target
Not confirmedNo matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.
Search Target ↗Walmart
Not confirmedNo matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.
Search Walmart ↗Prices and stock are point-in-time observations. Related pages are never used as product evidence. No affiliate links; LookCloser earns nothing from these sellers.
Want the complete evidence trail?
The summary stops at product-specific facts. The full report preserves every source, calculation, limitation, and unresolved check for review or sharing.
Record built August 09, 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.