“Magnesium 500 mg per serving”
Evidence →The label promises 500 mg per serving. The panel says 500 mg. They match.
Exact product checked · GTIN 00717504184050Tewuky · checked Aug 2, 2026 · on sale since Apr 18, 2025🇨🇳 USPTO wordmark owner · Shenzhen Jipasimai Technology Co., Ltd. (limited company (ltd.); China) · ChinaPackage says manufactured for: Tewuky LLC · 777 N Oceanbluff Ave, San Dimas, CA 91773
Quick read · Tewuky
Magnesium Glycinate Gummies 2 Bottles
Checked against public sources on August 2, 2026 · LookCloser does not sell or recommend supplements.
60gummies · 30 servings
Does the marketing hold up?
The label says 3.5 g of magnesium in 4 gummies — but not what those 4 gummies weigh. That weight is the one number that would let anyone check the amount on the front. We did not weigh it ourselves, so this is an open question, not a problem we found.
Is the dose real?Panel read — dose not verified4 ingredients listed; no advertised amount we could confirm against them
What a serving costs$1.20per serving, at the checked price
Is it tested?Claimed — no lab or certificate found
Who’s behind it?🇨🇳Shenzhen Jipasimai Technology Co., Ltd. (limited company (ltd.); China)other · China
Is it the real thing?✓Barcode matches outside records
Trouble on record?✓No recalls found
“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.
1✓ checked out2◖ partly confirmed1? couldn’t verifyno contradictions · no recalls
The label itself
What the Supplement Facts panel says
| Calories | 15 |
|---|---|
| Total Carbohydrate | 3 g |
| Total sugars | 0 g |
| Magnesium (as magnesium glycinate) | 500 mg |
Printed on the package: SGS · 3rd Party Tested · Sugar-Free · COA Certified · GMP Certified · Sugar Free · Melatonin Free
We read 4 lines from the package photograph. It is our transcript of the label, not the manufacturer’s panel, and it may be incomplete.
Marketing claims, checked
The checks, one by one
1 promise checks out. 3 could not be fully confirmed from public sources.
✓Matches the label1
◐Partly confirmed2
“Magnesium Glycinate Gummies 2 Bottles, Sugar-Free for Adults & Kids, Best Magnesium Gummies for Sleep, Stress & Muscle Relief, Supports Bone &…”
Evidence →Ingredient evidence exists; on dose: label states 500 mg/serving — about 119% 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.
“batch is GMP compliant and lab-tested to ensure quality and”
Evidence →“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.
Ingredient research can support context, but it is not a trial of this exact product.
?Couldn’t verify independently1
“batch is GMP compliant and lab-tested to ensure quality and”
Evidence →No named laboratory or lot-specific certificate was found for this exact product. No exact brand product page was available for a document check. 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
Best Form for Bedtime
Quick read · 5 useful findings
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
Needs explanationIs the label honest?
The label says 3.5 g of magnesium in 4 gummies — but not what those 4 gummies weigh
That weight is the one number that would let anyone check the amount on the front. We did not weigh it ourselves, so this is an open question, not a problem we found.
Evidence and sources
A serving is 4 gummies, and the panel lists 3,500 mg — 3.5 g — of magnesium in that serving. What the panel doesn’t give is the one number needed to check it: what a serving weighs. Gummies of this type usually run somewhere around 2.5 to 3.5 grams each, which would put 4 of…
Locked evidence record →Open the full source-linked findingCheckedIs the label honest?
Listing claim matches the Supplement Facts panel
The label promise and the Supplement Facts amount agree.
Evidence and sources
The listing claims 500 mg; the photo-read Supplement Facts panel shows Magnesium (as magnesium glycinate) at 500 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 findingCheckedIs the label honest?
Every ingredient shows its amount · 4 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 findingPublic contextWill you get what you pay for?
Reaching a studied dose costs about $36/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 1.0 serving(s) a day to reach the low end of the studied range (200–420 mg), this product runs roughly $36 per month. A price observation, not a recommendation.
Locked evidence record →Open the full source-linked findingCheckedCan you trust the review pattern?
Reviews rose from 3 to 6 between July 8, 2025 and May 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 3 to 6 between July 8, 2025 and May 15, 2026. The largest rise inside any single 30-day window was about 1, so the count moved in steps rather than in one burst.
Locked evidence record →Open the full source-linked findingWhat remains open 3
- No FDA recall matched this brand in the current search.
- We have not found a public label filing for this exact product.
- Barcode checksum is valid; no independent product record was found.
These are evidence gaps, not strikes against the product.
Who owns the brand wordmark?
🇨🇳
Shenzhen Jipasimai Technology Co., Ltd. (limited company (ltd.); China)Other · exact supplement-class mark for TEWUKY
Filed address
China); Room 905, R&D Building 2, Yanxiang Technology Industrial Park,, Gaoxin Road, Dongzhou Community, Guangming Street, Guangming District,, Shenzhen, Guangdong Province, 518000, CHINA
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 ↗
Research behind the findings
Dose and research context
The label amount is shown beside the range used in the linked ingredient studies.
Dose vs research
Magnesium
STUDIED RANGE0550 mg
500 mg per serving — above the 200–420 mg/day used in the linked studies.
Linked ingredient research · label amount, not a recommendation
Background reading
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 500 mg of magnesium per serving. Studies we found used 200 mg–420 mg a day, so this sits above that range.
0studied 200 mg–420 mg
Study ranges differ between trials and change as research changes. This is background reading, not a pass, a failure, or a recommendation.
Where it sells
Price check for this exact product
Amazon
Exact UPC/GTIN match$35.96
$1.20 per labeled serving
matching UPC/GTIN · checked Aug 2, 2026
View on Amazon ↗iHerb
Not confirmedNo exact listing saved
We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search iHerb ↗Target
Not confirmedNo exact listing saved
We 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 confirmedNo exact listing saved
We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search Walmart ↗Only one exact price was available at build time; prices change by date, seller, and promotion.
No official brand storefront is confirmed in this record. That is neutral, but it prevents a direct brand-price, label, review, and document check.
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 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.