“CERTIFIED”
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 · GTIN 00665355432861Clean Nutraceuticals · checked Jul 22, 2026 · on sale since Sep 22, 2021USPTO returned 2 exact supplement-class owner records · inspect the identity trailPackage says distributed by: Allseason Enterprises, LLC · 7582 Las Vegas Blvd S. #3015, Las Vegas, NV 89123 USA
Quick read · Clean Nutraceuticals
Q Defend Quercetin Supplement with Zinc Vitamin C Vitamin D…
Checked against public sources between July 22 and July 24, 2026 · LookCloser does not sell or recommend supplements.
60capsules · 30 servings
Does the marketing hold up?
1 ingredient’ amounts are hidden inside “Clean Q-Defend™ Immune Proprietary Blend”. A blend total may be legal, but it prevents you from knowing whether any individual ingredient reaches a meaningful amount.
Is the dose real?✓Listing and panel agreeboth say 1,000 mg of Vitamin C
What a serving costs$1.00per serving, at the checked price
Is it tested?Claimed — no lab or certificate found
Who’s behind it?USPTO lists 2 owner recordssame brand name, more than one registrant — we don’t choose between them
Is it the real thing?✓Barcode matches outside records
Trouble on record?Recall check not run yeta gap in our records, not a finding about the product
“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 confirmed2? couldn’t verifyno contradictions · no recalls
The label itself
What the Supplement Facts panel says
| Vitamin C (as ascorbic acid) | 1000 mg |
|---|---|
| Vitamin D (as cholecalciferol) | 125 mcg |
| Zinc (zinc citrate, zinc gluconate, and zinc picolinate) | 50 mg |
| Clean Q-Defend™ Immune Proprietary Blend | 350 mg |
| Turmeric (Curcuma longa) (Root) Powder, Bifidobacterium lactis, Bromelain, Echinacea Purpurea (Echinacea purpurea) (Aerial Parts) Extract (4:1), Garlic (Allium sativum L.) (Bulb) Powder, Ginger (Zingiber officinale) (Root) Powder, Irish Moss (Chondrus crispus) (Whole Herb) Powder, L-Lysine Hydrochloride, Nettle (Urtica dioica) (Leaf) Powder, Reishi Mushroom (Ganoderma lucidum) (Fruiting Body) Extract (4:1), Rose Hips (Rosa canina) (Fruit) Powder, Sweet Wormwood (Artemisia annua) (Leaf) Powder | not stated separately |
| Elderberry (Sambucus nigra) (Fruit) Extract (10:1) | 100 mg |
| Sophora Japonica (Sophora japonica) (Flower bud) Extract (10:1) (Quercetin) | 100 mg |
| Black Pepper (Piper nigrum) (Fruit) Extract (4:1) | 5 mg |
The label groups several ingredients under “Clean Q-Defend™ Immune Proprietary Blend” and publishes only the combined total, so there is no way to tell how much of each one a serving contains. That is the manufacturer’s choice, not a gap in our reading.
Printed on the package: NON-GMO · THIRD PARTY TESTED · USA MADE · GMP CERTIFIED · 3RD PARTY TESTED · DIETARY SUPPLEMENT · MADE IN USA
We read 8 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
“Q Defend Quercetin Supplement with Zinc Vitamin C Vitamin D Elderberry Turmeric Black Pepper Garlic Ginger Sea Moss Lysine Stinging Nettle Reishi…”
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 independently2
“IN USA”
Evidence →“Made in USA” can describe only final bottling. Ingredient-sourcing records were not located for this product.
“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.
Quick read · 4 useful findings
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
Needs explanationIs the label honest?
Vitamin D: 125 mcg on the label; adult upper limit 100 mcg.
This serving is about 1.2× the adult upper limit shown by NIH. The limit applies to adults; 100 mcg = 4,000 IU.
Evidence and sources
The panel lists 125 mcg vitamin d. NIH gives 100 mcg as the adult Tolerable Upper Intake Level for adults; 100 mcg = 4,000 IU. That is about 1.2 times the limit.
NIH ODS — Vitamin D fact sheetupper-limit and Daily Value contextNIH NCCIH — Turmericturmeric / curcumin context · not product evidencePubMed search: curcumin bioavailability piperineturmeric / curcumin context · not product evidenceNIH ODS — Zinc fact sheetzinc context · not product evidence
Locked evidence record →Open the full source-linked findingPublic contextWho is behind it?
Registered owner records: ALLSEASON ENTERPRISES LLC · ALLSEASON IPCO, LLC
The public ownership record is ambiguous. We show the exact candidates instead of choosing one by name similarity.
Evidence and sources
USPTO returned multiple live supplement-class records for the exact brand wordmark: ALLSEASON ENTERPRISES LLC, ALLSEASON IPCO, LLC. These records answer who owns registrations for the brand; the separate product-to-owner or manufacturer link remains open.
Locked evidence record →Open the full source-linked findingCheckedWho is behind it?
Registered in NIH's supplement label database (DSLD)
A government label filing makes the listed formula easier to inspect and compare over time.
Evidence and sources
Label #316109 “Immune Defend” (Clean Nutraceuticals), entered 2024-07-25, with the full Supplement Facts on file. Company on file: Manufacturer — Clean Nutraceuticals.
Locked evidence record →Open the full source-linked findingWhat remains open 1
- Barcode checksum is valid; no independent product record was found.
These are evidence gaps, not strikes against the product.
Who owns the brand wordmark?
The brand has 2 exact supplement-class records
These are the USPTO records behind the brand name. We show them all rather than choosing one by similarity.
🇺🇸ALLSEASON ENTERPRISES LLC
SOUTH DAKOTA, USA; DELAWARE, USA · Registration 7031117
Ste 214-1619, 401 E 8th St, Sioux Falls, SOUTH DAKOTA 57103, UNITED STATES
Goods covered by this record
IC 005: Dietary supplements; Dietary supplements in the form of powder; Dietary supplements consisting primarily of vitamins; Food supplements; Green coffee bean extracts for use as dietary supplements; Gummy vitamins; Herbal supplements; Mineral supplements; Mineral nutritional supplements; Nutritional supplements; Nutritional supplements in the form of drink mixes; Protein supplements; Vitamin preparations; Vitamin supplements; Liquid vitamin supplements.
🇺🇸ALLSEASON IPCO, LLC
DELAWARE, USA · Registration 7942428
7582 Las Vegas Blvd. S., #3015, Las Vegas, Nevada 89123, UNITED STATES
Goods covered by this record
IC 005: Dietary supplements; Dietary supplements consisting primarily of vitamins; Dietary supplements in the form of powder; Food supplements; Green coffee bean extracts for use as dietary supplements; Gummy vitamins; Herbal supplements; Liquid vitamin supplements; Mineral supplements; Mineral nutritional supplements; Nutritional supplements; Nutritional supplements in the form of drink mixes; Protein supplements; Vitamin preparations; Vitamin supplements.
This answers who owns registrations for the brand wordmark. It does not by itself prove which entity made, imported, or sold this specific product. Open USPTO source ↗
Research behind the findings
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.
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 50 mg of zinc per serving. Studies we found used 8 mg–40 mg a day, so this sits above 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.
Where it sells
Price check for this exact product
Amazon
Exact UPC/GTIN match$29.95
$1.00 per labeled serving
matching UPC/GTIN · checked Aug 29, 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.
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 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.