Ingredient evidence exists; on dose: label states 180 mg/serving — about 43% of the adult daily reference (adult RDA 310–420 mg elemental; NIH sets 350 mg/day as the supplemental upper level for elemental magnesium). A single serving isn’t meant to supply a full day, so this is context, not a shortfall. Caveat: chelate labels (glycinate, citrate) often state compound mass, which reads ~5–7× higher than elemental magnesium — the Supplement Facts panel settles which is meant.

Pure Magnesium Glycinate 1,000mg, 300 Capsules
Checked against public sources on July 24, 2026 · LookCloser does not sell or recommend supplements.
Does the marketing hold up?
Package and trademark records name different responsible entities. The package says distributed by: Micro Ingredients, 4382 Mission Blvd Montclair, CA 91763. USPTO names DPL Trading, Inc. as the exact wordmark owner. …
“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 ascorbyl palmitate) | 40 mg |
|---|---|
| Magnesium (as magnesium glycinate) | 180 mg |
| Magnesium Glycinate | 1,000 mg |
Printed on the package: Non-GMO · gluten free · vitamin angels · PROUD SUPPORTER · gluten free
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
The public sources did not settle the marketing promises on this label.
◐Partly confirmed1
Ingredient research can support context, but it is not a trial of this exact product.
?Couldn’t verify independently2
“Made in USA” can describe only final bottling. Ingredient-sourcing records were not located for this product.
No named laboratory or lot-specific certificate was found for this exact product. A related brand page repeats a testing claim but names no issuer; its UPC is not published. 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
CLEAN INGREDIENTS ONLY · 1,000mg max strength magnesium
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
Listing claim matches the Supplement Facts panel
The label promise and the Supplement Facts amount agree.
Evidence and sources
The listing claims 180 mg; the photo-read Supplement Facts panel shows Magnesium (as magnesium glycinate) at 180 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 · 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 findingReaching a studied dose costs about $4/month
Comparing cost at a research-relevant amount shows how quickly the package is used and what the routine actually costs.
Evidence and sources
At 1.1 serving(s) a day to reach the low end of the studied range (200–420 mg), this product runs roughly $4 per month. A price observation, not a recommendation.
Locked evidence record →Open the full source-linked findingWhat remains open 3
- We have not found a public label filing for this exact product.
- Barcode checksum is valid; no independent product record was found.
- No dated review-history series is on file yet.
These are evidence gaps, not strikes against the product.
Filed address
4951 Holt Blvd, Suite A, Montclair, California 91763, 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
The label amount is shown beside the range used in the linked ingredient studies.
Magnesium
180 mg per serving — below the 200–420 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 180 mg of magnesium per serving. Studies we found used 200 mg–420 mg a day, so this sits below 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$0.15 per labeled serving
matching UPC/GTIN · checked Aug 29, 2026
View on Amazon ↗iHerb
Exact UPC/GTIN match$0.15 per labeled serving
matching UPC/GTIN · checked Jul 24, 2026
View on iHerb ↗Brand website
Official product-page candidate · UPC absentOfficial shopping lead; excluded from exact price comparisons.
Micro Ingredients Magnesium Glycinate 1,000mg Per Serving, 150 Capsules · 150 Capsules. Confirm the package UPC/GTIN before buying.
Check brand website ↗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 ↗Same UPC/GTIN observed across 2 sellers at the same price at check time.
The brand-page price is shown as a shopping lead only. It is excluded from the exact-product price difference because the page does not publish this record's matching UPC/GTIN.
The observed listing and related brand page repeat 1,000 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.
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.