“GMP-Compliant”
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.
Exact product checked · barcode not publishedJIANKYTZ · checked Aug 31, 2026 · on sale since Oct 23, 2025🇨🇳 USPTO wordmark owner · Shenzhen Yuelaiyuehao Trading Co., Ltd (limited company (ltd.); China) · ChinaPackage says manufactured for: JIANKYIZ
Quick read · JIANKYTZ
Sugar Free Magnesium Glycinate Gummies for Kids &…
Checked against public sources on August 31, 2026 · LookCloser does not sell or recommend supplements.
60gummies
60servings per container
Does the marketing hold up?
The label says 2 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?!Label says 400 mg · panel says 200 mg
What a serving costsNo price found for this exact barcode
Is it tested?No testing claim made
Who’s behind it?🇨🇳Shenzhen Yuelaiyuehao Trading Co., Ltd (limited company (ltd.); China)other · China
Is it the real thing?No barcode publishedso it can’t be matched against certification, recall or other retailer 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.
2◖ partly confirmedno contradictions · no recalls
The label itself
What the Supplement Facts panel says
| Calories | 5 |
|---|---|
| Total Carbohydrates | 1.5 g |
| Total Sugars | 0 g |
| Magnesium (as Magnesium Glycinate) | 200 mg |
| Calcium (as Calcium Citrate) | 300 mg |
| L-Theanine | 60 mg |
| GABA (Gamma-Aminobutyric Acid) | 50 mg |
| Zinc (from Zinc Amino Acid Chelate) | 4 mg |
| Vitamin K2 (as Menaquinone-7) | 15 mcg |
| Vitamin D3 (as Plant-based Cholecalciferol) | 500 IU |
| Vitamin C (Ascorbic Acid) | 32 mg |
| Vitamin B6 (as Pyridoxine HCl) | 0.6 mg |
| Chamomile Flower Extract | 40 mg |
| Lavender Extract | 15 mg |
Printed on the package: Certified Gluten-Free · Gluten-Free · Non-GMO · Vegan · Vegetarian Friendly · Sugar-Free · Alcohol Free · GMP-Compliant
We read 14 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
The public sources did not settle the marketing promises on this label.
◐Partly confirmed2
“Sugar Free Magnesium Glycinate Gummies for Kids & Adults - Zzz Support, Relaxation & Cognition Support, 200/400mg Magnesium Gummies with…”
Evidence →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.
Quick read · 3 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 2 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 2,000 mg — 2 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?
Every ingredient shows its amount · 14 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 findingCheckedCan you trust the review pattern?
We can see 7 of this product’s 29 reviews — the count rose between March 24 and September 1, 2026. That is too small a slice to say anything about the wider pattern.
A count that moves steadily is ordinary. A sudden burst is what deserves a closer look.
Evidence and sources
Written reviews rose from 22 to 29 between March 24 and September 1, 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.
Who owns the brand wordmark?
🇨🇳
Shenzhen Yuelaiyuehao Trading Co., Ltd (limited company (ltd.); China)Other · exact supplement-class mark for JIANKYTZ
Filed address
China); Bantian Street, Longgang District, 701, No. 1-2, Lane 8, Hekan Village, Shenzhen, 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 RANGE0525 mg
200 mg per serving — within 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 200 mg of magnesium per serving. Studies we found used 200 mg–420 mg a day, so this sits inside 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.
The panel lists 4 mg of zinc per serving. Studies we found used 8 mg–40 mg a day, so this sits below that range.
0studied 8 mg–40 mg
Study ranges differ between trials and change as research changes. This is background reading, not a pass, a failure, or a recommendation.
Buying options
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 listing$19.99
Lowest New observed via Keepa on 2026-09-02.
View on Amazon ↗iHerb
Not confirmedNo price confirmed
No 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 price confirmed
No 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 price confirmed
No 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 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.