“GMP”
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 publishedZytherial · checked Jul 31, 2026 · on sale since May 5, 2026🇨🇳 USPTO wordmark owner · Ganhai Deng · China
Quick read · Zytherial
NMN Supplement 1,000 mg Per Serving
Checked against public sources on July 31, 2026 · LookCloser does not sell or recommend supplements.
89capsules · 29 servings
Does the marketing hold up?
🇨🇳 Brand owner: Ganhai Deng · individual, China. This tells you who is behind the brand and where the trademark record points. It does not by itself identify the manufacturer.
Is the dose real?✓Listing and panel agreeboth say 1,000 mg of NMN
What a serving costsNo price found for this exact barcode
Is it tested?Claimed — no lab or certificate found
Who’s behind it?🇨🇳Ganhai Dengindividual · 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 confirmed1? couldn’t verifyno contradictions · no recalls
The label itself
What the Supplement Facts panel says
| Vitamin C (as Ascorbic Acid) | 35 mg |
|---|---|
| Vitamin E (as d-Alpha Tocopherol) | 15 mg |
| Vitamin B6 (as Pyridoxal-5'-Phosphate) | 10 mg |
| Folate (as L-5-Methyltetrahydrofolate, Calcium Salt) | 680 mcg DFE |
| Vitamin B12 (as Methylcobalamin) | 100 mcg |
| NMN (as β-Nicotinamide Mononucleotide) | 1000 mg |
| Trimethylglycine (TMG) (as Betaine Anhydrous) | 300 mg |
| Rhodiola rosea (root) extract (standardized to 3% rosavins, 1% salidroside) | 200 mg |
| Resveratrol (from Polygonum cuspidatum root extract) (standardized to 98% trans-resveratrol) | 150 mg |
| Glutathione (as Liposomal Glutathione) | 150 mg |
| Urolithin A | 100 mg |
| CoQ10 (as Ubiquinone) | 100 mg |
| Gotu Kola (Centella asiatica) (leaf) extract (standardized to ≥10% asiaticosides) | 80 mg |
| Astaxanthin (from Haematococcus pluvialis microalgae) | 8 mg |
Printed on the package: Third Party Tested · Gluten Free · Dairy Free · Non-GMO · GMP · Soy Free
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
“NMN Supplement 1000mg Per Serving, 14-in-1 with TMG, Urolithin A, Resveratrol, Glutathione, CoQ10 for Men Women, NMNH Alternative & NAD+…”
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.
?Couldn’t verify independently1
“Party”
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
Advanced 14-Ingredient Healthy Aging Formula
Quick read · 2 useful findings
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
CheckedIs 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?
Reviews rose from 0 to 6 between June 21 and July 14, 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 6 between June 21 and July 14, 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 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?
🇨🇳
Ganhai DengIndividual · exact supplement-class mark for ZYTHERIAL
Show the exact filed address in the full report
Shangdong Fangtianwei Village Working Group, Jintang Town, Maonan District, Maoming , Guangdong, 525000, 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 ↗
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
NMN
STUDIED RANGE01250 mg
1000 mg per serving — within the 250–1000 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 1 g of NMN (nicotinamide mononucleotide) per serving. Studies we found used 250 mg–1 g a day, so this sits inside that range.
0studied 250 mg–1 g
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$48.99
Lowest New observed via Keepa on 2026-07-31.
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 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.