Checked against public sources on September 1, 2026 · LookCloser does not sell or recommend supplements.
Does the marketing hold up?
The barcode identity checks out · 810157851567. The barcode matches, so we are checking the right product rather than a look-alike.
Headlines first. Open evidence only when you want the source trail.
The barcode matches, so we are checking the right product rather than a look-alike.
The brand's store lists this exact barcode as “Magnesium Glycinate” (variant: 625 mg / 90 Count) — identity confirmed across retailer listings.
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 0 to 25 between August 20, 2025 and August 22, 2026. The largest rise inside any single 30-day window was about 6, 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
472, 2973 Harbor Blvd., Costa Mesa, CALIFORNIA 92626, 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.
matching UPC/GTIN · checked Sep 1, 2026
View on Amazon ↗matching UPC/GTIN · checked Sep 1, 2026
View on Brand website ↗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 ↗Same UPC/GTIN observed across 2 sellers. Amazon was lowest at $11.87; Brand website was highest at $16.99 — a $5.12 range at check time.
The observed listing and exact brand page repeat 625 mg. That confirms cross-page consistency of the published claim, not the product contents.
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 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.