Checked against public sources on July 25, 2026 · LookCloser does not sell or recommend supplements.
Does the marketing hold up?
FDA recall appears in this brand's history An exact-product recall is a direct signal. A different product from the same firm is company context, not a strike against this item.
“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.
The public sources did not settle the marketing promises on this label.
Published research exists for ingredients in this formula — see Related research below. 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.
Headlines first. Open evidence only when you want the source trail.
An exact-product recall is a direct signal. A different product from the same firm is company context, not a strike against this item.
Brand-level context only, not a finding about this product. Pure Encapsulations, Inc. recalled a different or not-exactly-bound product on 2017-11-17: “Product contains undeclared sulfites.” (status: Terminated). The recalled product was: “Pure Encapsulations Systemic Enzyme Comp…
Locked evidence record →Open the full source-linked findingThe barcode matches, so we are checking the right product rather than a look-alike.
UPCitemdb resolves 766298002538 to "Pure Encapsulations Zinc 30 mg - Supplement for Immune System Support Growth an" (Pure Encapsulations) — consistent with this listing.
Locked evidence record →Open the full source-linked findingGradual growth is more ordinary. A sudden burst deserves a closer look.
Written reviews grew from 228 to 242 across 2026-02-05 – 2026-07-18 with no single manufactured spike (largest 30-day gain ~5).
Locked evidence record →Open the full source-linked findingThese are evidence gaps, not strikes against the product.
Filed address
490 Boston Post Road, Sudbury, MASSACHUSETTS 01776, 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 ↗
The label amount is shown beside the ranges used in the linked ingredient studies.
30 mg per serving — within the 8–40 mg/day used in the linked studies.
$0.23 per labeled serving
matching UPC/GTIN · checked Jul 25, 2026
View on Amazon ↗$0.23 per labeled serving
matching UPC/GTIN · checked Jul 24, 2026
View on Target ↗$0.23 per labeled serving
matching UPC/GTIN · checked Jul 24, 2026
View on iHerb ↗Search results remain not linked to this exact product until this retailer publishes the matching UPC/GTIN.
Search Walmart ↗Same UPC/GTIN observed across 3 sellers at the same price at check time.
Reference prices only · no affiliate links · every compared seller must publish the matching UPC/GTIN.
The summary stops at product-specific facts. The full report preserves every source, calculation, limitation, and unresolved check for review or sharing.
Record built July 25, 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.