“GMP-certified” describes factory processes, not what is in the bottle. The claim does not name a certifier or public register that a shopper can check.

Magnesium Glycinate Gummies 400mg High Absorption Calm Magnesium…
Checked against public sources on July 31, 2026 · LookCloser does not sell or recommend supplements.
Does the marketing hold up?
The listing says 300 mg of magnesium; the panel says 600 mg. We could not find an explanation for the difference — no blend, extract ratio, compound form or multi-capsule serving accounts for it. You are getting 600 mg of magnesium per serving. …
“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
| Calories | 10 |
|---|---|
| Total Carbohydrate | 4 g |
| Dietary Fiber | 2 g |
| Total Sugars | 0 g |
| Includes 0g Added Sugars | 0 g |
| Protein | 0 g |
| Magnesium Glycinate | 600 mg |
| Magnesium Citrate | 300 mg |
| Magnesium L-Threonate | 100 mg |
| Providing elemental Magnesium | 120 mg |
| Calcium (as Calcium Carbonate) | 40 mg |
| Potassium (as Potassium Gluconate) | 10 mg |
| Plant-Derived Vitamin D3 (Cholecalciferol) | 10 mcg(400 IU) |
| Vitamin B6 (as Pyridoxine Hydrochloride) | 1.7 mg |
| Coenzyme Q10 | 100 mg |
| L-Theanine | 150 mg |
| Black Pepper Extract | 10 mg |
Printed on the package: DESIGN IN USA · Sugar-Free · Gluten Free · Non-GMO · Vegan-Friendly · GMP Certified Facility · Sugar Free
We read 17 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 confirmed2
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.
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
Every ingredient shows its amount · 17 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 findingReviews rose from 0 to 2 between April 2 and April 15, 2026 — no sudden jump.
A count that moves steadily is ordinary. A sudden burst is what deserves a closer look.
Evidence and sources
Written reviews rose from 0 to 2 between April 2 and April 15, 2026. The largest rise inside any single 30-day window was about 2, so the count moved in steps rather than in one burst.
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.
Show the exact filed address in the full report
No.81-15, Downstairs, Qingshan Village, Guhuai Town, Changle City, Fujian Province, 350205, CHINAUSPTO 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 600 mg of magnesium per serving. Studies we found used 200 mg–420 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.
The panel lists 2 g of prebiotic fiber (inulin-type) per serving. Studies we found used 3 g–10 g 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.
Where you can check or buy it
Only the submitted seller page is identity-certain. Other destinations are shown as leads until a shared UPC/GTIN confirms the exact product.
Amazon
Submitted listingLowest New observed via Keepa on 2026-07-31.
View on Amazon ↗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 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.