full reportFull record · lc-36754459 · back to the summary
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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.
The listing-image panel publishes an amount for each of its 25 listed rows. That supports ingredient-by-ingredient review; it does not verify the contents.
| Panel row | Amount | %DV | What to notice |
|---|---|---|---|
| Calories | 110 | — | |
| Total Fat | 0.5g | — | |
| Cholesterol | 5mg | — | |
| Sodium | 190mg | — | |
| Total Carbohydrate | 0g | — | |
| Total Sugars | 0g | — | |
| Includes Added Sugars | 0g | — | |
| Protein | 25g | — | |
| Calcium | 370mg | — | |
| Potassium | 100mg | — | |
| Vitamin A | 300mcg | — | |
| Vitamin C | 15mg | — | |
| Vitamin E | 5mg | — | |
| Thiamin | 0.37mg | — | |
| Riboflavin | 0.43mg | — | |
| Niacin | 5mg | — | |
| Vitamin B6 | 0.5mg | — | |
| Folate | 165mcg DFE (100mcg folic acid) | — | |
| Vitamin B12 | 2.43mcg | — | |
| Pantothenic Acid | 2.5mg | — | |
| Phosphorus | 280mg | — | |
| Iodine | 37mcg | — | |
| Magnesium | 115mg | — | |
| Zinc | 4.1mg | — | |
| Selenium | 17mcg | — |
FDA rules (21 CFR 101.36) require the amount of each dietary ingredient per serving unless hidden in a listed “proprietary blend” (legal, but a transparency yellow flag). A label stating no amount at all is non-compliant — a checkable red flag. This panel states amounts; the open question is whether those listed amounts are independently verified and how they compare with relevant research.
vision:google/gemini-2.5-flash Amounts are shown as listed panel data, not independently lab-tested contents.
Every check we ran
Confirmed evidence
These checks found support in the public record. They confirm specific facts, not the product as a whole.
USPTO lists Nature's Best Inc. (CORPORATION; LIMITED LIABILITY COMPANY) in NEW YORK, USA; DELAWARE, USA for the exact brand wordmark. This identifies the USPTO mark owner or applicant; it does not by itself prove who manufactures or sells this product.
Written reviews rose from 2,527 to 2,621 between August 6, 2025 and August 19, 2026. The largest rise inside any single 30-day window was about 60, so the count moved in steps rather than in one burst.
Documented concerns
These are documented contradictions or claims that need more evidence. They are separate from missing data.
No contradictions or product-specific cautions were found at this check depth.
Unresolved public record
We looked for these signals but could not settle them from public sources. A gap is not a strike.
Technical check only: the panel’s 17 actives sum to 898 mg, which fits inside the ≈31,000 mg serving. This means the numbers are physically possible — it does not mean the formula was validated or the contents confirmed.
40 servings × 31 g = 1240 g, matching the printed net weight 1240 g (NET WT 43.73 OZ (2.73 LB) 1.24 KG ABOUT 40 SERVINGS). This checks agreement within the photo read; it is not an independent contents test.
Published sources describe how magnesium, zinc have been studied. This is ingredient context only; the record does not establish that this product delivers the studied dose or outcome. Sources: NIH ODS — Magnesium fact sheet, PubMed search: magnesium glycinate supplementation.
This means only that no enforcement record matched the brand name — it does not mean the product was tested, reviewed, or cleared by FDA. New and untested products also have no recall records.
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.
Exact-listing history records written-review counts from 2,476 on 2025-07-30 to 2,621 on 2026-08-19 (net +145). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.
What to ask and check
Ask the brand or seller
What is the product’s UPC or GTIN?
The barcode is how a product gets matched to outside records — certification registries, label databases, recall data. Without it, almost nothing can be cross-checked.
Is this label filed with NIH’s Dietary Supplement Label Database (DSLD)?
Filing is voluntary, so absence proves nothing — but a filed label puts the full ingredient table on public record where anyone can read it.
Most brands and sellers publish a contact route. A clear answer adds evidence to the record; no answer leaves the question open.
Check for yourself — no one’s permission needed
Compare the panel on the bottle in your hand to the one shown in this record.
Ours was read from listing photos and can contain reading errors. The physical label is the source of truth — if they disagree, tell us and we’ll correct the record.
Check the lot number and expiry on the bottle against any COA you’re given.
A certificate that doesn’t name your lot doesn’t describe what you’re holding.
These are the open questions on this specific record — not a warning about the product, and not a suggestion to buy or avoid it. Getting them answered is how you decide for yourself.
What the listing promises — claim by claim
| Claim | Status | What we found |
|---|---|---|
| Benefit claim “…25g of high-quality protein per serving to support daily protein needs Ultra-filtered protein to remove excess fat, carbs and sugars An effortless addition to your favor” | 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. 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
| Ingredient | Where this label sits | Reading |
|---|---|---|
| Magnesium | shaded = doses used in studies (200 mg–420 mg) · bar = this label | 115 mg — below the studied range |
| Zinc | shaded = doses used in studies (8 mg–40 mg) · bar = this label | 4.1 mg — below 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
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 — 2 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-36754459 (internal — no barcode published, which limits cross-checking) |
| Brand | Isopure |
| Source listing identifier | B000E95HP0 |
| Retailer listing title | Isopure Zero Carb 100% Pure Whey Isolate Protein Powder, Gluten Free, … show full titleIsopure Zero Carb 100% Pure Whey Isolate Protein Powder, Gluten Free, with Vitamins, Creamy Vanilla, 25g Protein Per Serving, 3 lb |
| USPTO brand owner | Nature's Best Inc. · CORPORATION; LIMITED LIABILITY COMPANY · NEW YORK, USA; DELAWARE, USA |
| Owner filed address | 195 Engineers Road, Hauppauge, NEW YORK 117884003, UNITED STATES |
From the label (photo-read)
| Serving size | 31g (About 1 Scoop) |
| Servings per container | 40 |
| Net weight | NET WT 43.73 OZ (2.73 LB) 1.24 KG ABOUT 40 SERVINGS |
Supplement Facts panel (photo-read):
| Ingredient | Amount per serving | Reading confidence |
|---|---|---|
| Calories | 110 | High clearly legible in the photo |
| Total Fat | 0.5g | High clearly legible in the photo |
| Cholesterol | 5mg | High clearly legible in the photo |
| Sodium | 190mg | High clearly legible in the photo |
| Total Carbohydrate | 0g | High clearly legible in the photo |
| Total Sugars | 0g | High clearly legible in the photo |
| Includes Added Sugars | 0g | High clearly legible in the photo |
| Protein | 25g | High clearly legible in the photo |
| Calcium | 370mg | High clearly legible in the photo |
| Potassium | 100mg | High clearly legible in the photo |
| Vitamin A | 300mcg | High clearly legible in the photo |
| Vitamin C | 15mg | High clearly legible in the photo |
| Vitamin E | 5mg | High clearly legible in the photo |
| Thiamin | 0.37mg | High clearly legible in the photo |
| Riboflavin | 0.43mg | High clearly legible in the photo |
| Niacin | 5mg | High clearly legible in the photo |
| Vitamin B6 | 0.5mg | High clearly legible in the photo |
| Folate | 165mcg DFE (100mcg folic acid) | High clearly legible in the photo |
| Vitamin B12 | 2.43mcg | High clearly legible in the photo |
| Pantothenic Acid | 2.5mg | High clearly legible in the photo |
| Phosphorus | 280mg | High clearly legible in the photo |
| Iodine | 37mcg | High clearly legible in the photo |
| Magnesium | 115mg | High clearly legible in the photo |
| Zinc | 4.1mg | High clearly legible in the photo |
| Selenium | 17mcg | High clearly legible in the photo |
Claims printed on the packaging:
“FROM 100% WHEY PROTEIN ISOLATE” · “CREAMY VANILLA” · “ARTIFICIALLY FLAVORED” · “25G PROTEIN” · “PROTEIN POWDER DRINK MIX” · “NOTICE: USE THIS PRODUCT AS A FOOD SUPPLEMENT ONLY. DO NOT USE FOR WEIGHT REDUCTION.” · “Classic, Delicately Sweet,” · “Velvety Smooth Vanilla Flavor”
Read by a vision model from 8 listing photos — verbatim extraction; OCR errors possible. Spot a mistake? It will be corrected on review.
Ingredient science — NIH references
Calcium — NIH ODS · MedlinePlus · PubMed (48,938) · UL 2500 mg (adults 19-50 (2,000 mg for 51+))
Potassium — NIH ODS · MedlinePlus · PubMed (16,128) · no UL; supplements capped at 99 mg OTC
Vitamin A — NIH ODS · MedlinePlus · PubMed (10,699) · UL 3000 mcg (preformed vitamin A (retinol); excludes beta-carotene)
Vitamin C — NIH ODS · MedlinePlus · PubMed (11,019) · UL 2000 mg (total intake, adults)
Vitamin E — NIH ODS · MedlinePlus · PubMed (12,326) · UL 1000 mg (supplemental alpha-tocopherol, adults)
Thiamin — NIH ODS · MedlinePlus · PubMed (1,262) · no UL established
Riboflavin — NIH ODS · MedlinePlus · PubMed (3,172) · no UL established
Niacin — NIH ODS · MedlinePlus · PubMed (2,689) · UL 35 mg (supplemental/added niacin, adults)
Vitamin B6 — NIH ODS · MedlinePlus · PubMed (2,372) · UL 100 mg (adults; chronic high intake linked to neuropathy)
Folate — NIH ODS · MedlinePlus · PubMed (10,628) · UL 1000 mcg (synthetic folic acid from supplements/fortified food)
Vitamin B12 — NIH ODS · MedlinePlus · PubMed (5,006) · no UL established
Pantothenic Acid — NIH ODS · MedlinePlus · PubMed (601) · no UL established
Phosphorus — NIH ODS · MedlinePlus · PubMed (13,233) · UL 4000 mg (adults 19-70)
Iodine — NIH ODS · MedlinePlus · PubMed (6,462) · UL 1100 mcg (adults)
Magnesium — NIH ODS · MedlinePlus · PubMed (11,814) · UL 350 mg (SUPPLEMENTAL magnesium only (not from food))
Zinc — NIH ODS · MedlinePlus · PubMed (19,708) · UL 40 mg (adults, from all sources)
Selenium — NIH ODS · MedlinePlus · PubMed (12,481) · UL 400 mcg (adults)
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 listed amount and the reference are shown for your own judgment. LookCloser gives no medical advice.
Related research & consistency
magnesium — NIH ODS — Magnesium fact sheet · PubMed search: magnesium glycinate supplementation · WebMD: magnesium · ClinicalTrials.gov — 3,206 registered studies
ℹ Use pattern in research: daily oral use; chelated forms (glycinate) are studied for absorption — note labels may state compound mass rather than elemental magnesium, which differs ~7-fold.
zinc — NIH ODS — Zinc fact sheet · PubMed search: zinc supplementation trial · 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-36754459 · built September 03, 2026 · lookcloser.ai · corrections@lookcloser.ai