“IN THE USA, GMP-CERTIFIED — Manufactured in a GMP-certified facility in the United”
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 publishedZEST · checked Jul 27, 2026 · on sale since May 27, 2026🇺🇸 USPTO wordmark owner · Zest Labs Inc · Delaware, USA
Quick read · ZEST
ZEST Elite Electrolytes + Creatine Powder Sticks
Checked against public sources on July 27, 2026 · LookCloser does not sell or recommend supplements.
30sticks · 30 servings
Does the marketing hold up?
Research links are available for creatine monohydrate, magnesium. Use the linked research to check whether the ingredient and outcome you care about are actually connected. Ingredient evidence does not verify this product.
Is the dose real?✓Listing and panel agreeboth say 5 g of Creatine Monohydrate
What a serving costsNo price found for this exact barcode
Is it tested?Claimed — no lab or certificate found
Who’s behind it?🇺🇸Zest Labs Inccorporation · Delaware, USA
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△ support not found2? couldn’t verifyno contradictions · no recalls
The label itself
What the Supplement Facts panel says
| Total Carbohydrate | <1 g |
|---|---|
| Calcium (as Calcium Carbonate) | 60 mg |
| Magnesium (as Magnesium Malate) | 40 mg |
| Chloride | 2,000 mg |
| Sodium (as Sodium Chloride) | 1,100 mg |
| Potassium (as Potassium Chloride) | 320 mg |
| Creatine Monohydrate | 5 g |
Printed on the package: NATURALLY FLAVORED
We read 7 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 needs a closer look.
◐Partly confirmed2
“shows electrolytes improve creatine absorption, so pairing them in one stick lets each ingredient work”
Evidence →The panel lists 5 g creatine per serving, at the top of the commonly studied 3–5 g/day range. This compares listed label numbers with research; it does not verify contents or recommend an amount.
Ingredient research can support context, but it is not a trial of this exact product.
△Claimed without support found1
“ELECTROLYTE COMPLEX + 5G PURE CREATINE MONOHYDRATE — A clinically studied 5g dose of pure creatine monohydrate paired with 5 essential…”
Evidence →We found no named, citable study of this product or formula. The claim may rest on ingredient research rather than a trial of this product.
?Couldn’t verify independently2
“IN THE USA, GMP-CERTIFIED — Manufactured in a GMP-certified facility in the United”
Evidence →“Made in USA” can describe only final bottling. Ingredient-sourcing records were not located for this product.
“TESTED”
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.
Quick read · 0 useful findings
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
What 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?
🇺🇸
Zest Labs IncCorporation · exact supplement-class mark for ZEST
Filed address
207 King St APT 711, San Francisco, California 94107, 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 ↗
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
Creatine
STUDIED RANGE06.25 g
5 g per serving — within the 3–5 g/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 5 g of creatine monohydrate per serving. Studies we found used 3 g–5 g a day, so this sits inside that range.
0studied 3 g–5 g
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 40 mg of magnesium per serving. Studies we found used 200 mg–420 mg a day, so this sits below 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.
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$49.98
Lowest New observed via Keepa on 2026-07-27.
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 to inspect the evidence?
The full report shows every source, the exact unresolved question, and the documentation that would settle it.
Record built July 27, 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.