Full record · lc-025078e4 · back to the summary
THORNE - Zinc Picolinate 15 mg - Highly Absorbable Zinc Supplement
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How to read this report
What this is. We compare what a listing claims against what public records show — label arithmetic, barcode registries, NIH’s label catalog, FDA enforcement data, certification registries, and published research. Every statement below traces to one of those.
What the states mean. Confirmed = an outside source agrees. Contradicted = an outside source disagrees. Caution = something needs explaining. No data = we looked and found nothing — a gap, not a strike.
What it is not. A clean record is not an endorsement and never proof a product works. A thin record is not an accusation. We publish evidence and gaps; the conclusion is yours. Nothing here is medical advice.
Something wrong? Every figure is meant to be checkable — sources are named and linked. Send a correction and we’ll fix the record.
Every check we ran
Intake method matches the research
Nothing in this listing contradicts how these ingredients were studied (zinc). For example, zinc: daily oral use; sustained high intakes can interfere with copper absorption — a documented interaction, not advice. Sources: NIH ODS — Zinc fact sheet, PubMed search: zinc supplementation trial.
Each ingredient’s amount is disclosed
The panel gives a per-ingredient amount rather than hiding quantities inside a proprietary blend, so each one can be compared to published research.
No data yet: Label math could not be verified
What this means: the listing doesn't publish net weight, per-serving dose, servings per container, so the dose claim can't be checked against physics from public data. That's neither a pass nor a strike — but it does mean you're taking the label on faith. Checkable products publish these numbers.
No data yet: Trademark owner candidates are ambiguous
USPTO returned multiple live supplement-related marks with the exact brand wordmark and different registrants. The owner is withheld until the product-to-mark identity is pinned down.
No data yet: Testing claimed — documentation not found
The listing claims third-party testing without naming any lab or certifier, so the claim can't be verified as stated.
Category context: sexual-enhancement products carry documented FDA risk
FDA's health-fraud program documents sexual-enhancement products as the most common supplement category found to contain undeclared prescription-drug ingredients. This is a category-level documented fact from FDA's public database — not a test result for this specific product. Source: fda.gov (linked in Related research).
Brand holds NSF/ANSI 173 certification (brand-level)
Thorne® appears in NSF’s certified-products registry with 10 certified product(s), but we couldn’t confirm this exact listing is among them. Closest listed product: “Thorne® Zinc Picolinate 30 mg”. Certification covers contents and contaminants — not effectiveness.
180-day review-count history is on file
Exact-listing history records written-review counts from 356 on 2026-01-27 to 430 on 2026-07-19 (net +74). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.
This item belongs to a catalog variation family
The paid catalog links this exact item to a parent listing. Review counts on public product pages may be shared across sizes, flavors, or other variants, so the count history is listing context — not evidence that reviewers received or tested this exact variant.
What the listing promises — claim by claim
Why is this shown?
| Claim | Status | What we found |
|---|---|---|
| Quality-testing claim “…ty Contents Certified: This product has been third-party tested and certified to verify what's in the packag…” | Claimed, not verifiable We looked for: a named laboratory, a certificate of analysis, or a certification-registry entry | No named laboratory, no certificate of analysis, and no certification-registry entry matching this product was located. |
| Benefit claim “…15 mg - Highly Absorbable Zinc Supplement - Supports Immune System, Eye, Skin & Reproductive Heal…” | Partly supported We looked for: whether the ingredient doses on the label match the doses used in published research | Published research exists for ingredients in this formula — see Related research below. Whether this product’s doses match those studies could not be confirmed. |
“No evidence located” does not mean a claim is false — it means the seller has not put evidence proportionate to the claim on the public record, and we could not find any. Absence of proof is not proof of absence.
This label vs. the doses studied
Why is this shown?
| Ingredient | Where this label sits | Reading |
|---|---|---|
| Zinc (as Zinc Picolinate) | shaded = doses used in studies (8 mg–40 mg) · bar = this label | 15 mg — within the studied range |
Matching a studied dose does not mean the product works, and missing it does not mean it fails — it shows whether the label and the research are talking about the same amounts. Not a recommendation to take any amount.
Documented cautions
- zinc — daily oral use; sustained high intakes can interfere with copper absorption — a documented interaction, not advice
Statements from published sources about these ingredients — not advice about this product, and not a complete safety review. Anyone taking medication should talk to a pharmacist or clinician.
Verifiability profile — 1 of 6 public signals
What this listing gives the public to check. Publishing these signals doesn't prove quality — but withholding them means claims can only be taken on faith.
Identity
| LookCloser record ID | lc-025078e4 (internal — no barcode published, which limits cross-checking) |
| Brand | THORNE |
| Source listing identifier | B0797NSHQX |
| Retailer listing title | THORNE - Zinc Picolinate 15 mg - Highly Absorbable Zinc Supplement - S… show full titleTHORNE - Zinc Picolinate 15 mg - Highly Absorbable Zinc Supplement - Supports Immune System, Eye, Skin & Reproductive Health* - Third-Party Certified - Gluten, Dairy & Soy-Free - 60 Capsules |
From the label (photo-read)
| Serving size | One Capsule |
| Pack statement | 60 CAPSULES |
| Badges printed on pack | Third-Party Certified |
Supplement Facts panel (photo-read):
| Ingredient | Amount per serving | Reading confidence |
|---|---|---|
| Zinc (as Zinc Picolinate) | 15 mg | High clearly legible in the photo |
Claims printed on the packaging:
“DIETARY SUPPLEMENT” · “Zinc supports skin and connective tissues,” · “protects against oxidative stress, and promotes immune, eye, nerve, and reproductive health.*” · “A well-researched form of zinc that exhibits superior absorption and tolerability” · “Supports the development and function of cells related to the immune system” · “Promotes cellular skin repair” · “Supports the body's normal production of testosterone, a hormone essential for promoting lean muscle mass” · “Take 1 capsule one to two times daily.”
Read by a vision model from 8 listing photos — verbatim extraction; OCR errors possible. Spot a mistake? It will be corrected on review.
Listed ingredients (as stated on the listing)
One Capsule Contains: Zinc (as Zinc Picolinate) 15 mg. Other Ingredients: Microcrystalline Cellulose, Hypromellose (derived from cellulose) capsule, Leucine, Silicon Dioxide.
Ingredient science — NIH references
Zinc — NIH ODS · MedlinePlus · PubMed (19,708) · UL 40 mg (adults, from all sources)
Reference data from the NIH Office of Dietary Supplements, IOM Dietary Reference Intakes, and PubMed. A Tolerable Upper Intake Level is a documented reference figure, not a safety verdict — both the declared amount and the reference are shown for your own judgment. LookCloser gives no medical advice.
Related research & consistency
zinc — NIH ODS — Zinc fact sheet · PubMed search: zinc supplementation trial · FDA — tainted sexual-enhancement products · ClinicalTrials.gov — 1,598 registered studies
ℹ Use pattern in research: daily oral use; sustained high intakes can interfere with copper absorption — a documented interaction, not advice.
These notes state where label numbers and marketing framing sit relative to published research — documentation for your own judgment, not medical advice. LookCloser does not advise for or against taking any supplement.
Record lc-025078e4 · built July 21, 2026 · lookcloser.ai · corrections@lookcloser.ai