“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.

Nutricost Vitamin D3 10
Checked against public sources between July 23 and July 24, 2026 · LookCloser does not sell or recommend supplements.
Does the marketing hold up?
Package and trademark records name different responsible entities. The package says manufactured for: nutricost, 351 E 1750 N, Vineyard, UT 84059. USPTO names eSupplements, LLC as the exact wordmark owner. That can be a normal distributor, manufacturer, or licensing…
“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.
What the Supplement Facts panel says
| Calories | 5 |
|---|---|
| Vitamin D | 250mcg (10,000 IU) 1,250% |
Printed on the package: QUALITY GUARANTEED nutristcost · NON-GMO · GLUTEN-FREE · GMP · THIRD PARTY TESTED · GMP COMPLIANT FACILITY · NON-GMO PRODUCT · Quality nutricost GUARANTEED
We read 2 lines from the package photograph. It is our transcript of the label, not the manufacturer’s panel, and it may be incomplete.
The checks, one by one
The public sources did not settle the marketing promises on this label.
◐Partly confirmed2
A testing body is named on the brand page (NSF), but we found no lot-specific certificate of analysis.
Ingredient research can support context, but it is not a trial of this exact product.
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
The barcode identity checks out · 810139573128.
The barcode matches, so we are checking the right product rather than a look-alike.
Evidence and sources
UPCitemdb resolves 810139573128 to "Nutricost Vitamin D3 10 000 IU Supplement 240 Soft Gel Caps" (Nutricost) — consistent with this listing.
Locked evidence record →Open the full source-linked findingWhat remains open 1
- We have not found a public label filing for this exact product.
These are evidence gaps, not strikes against the product.
Filed address
UTAH, USA) DBA Nutricost; 351 E 1750 N, VINEYARD, UTAH 84059, 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 ↗
Price check for this exact product
Amazon
Exact UPC/GTIN match$0.07 per labeled serving
matching UPC/GTIN · checked Aug 29, 2026
View on Amazon ↗iHerb
Exact UPC/GTIN match$0.07 per labeled serving
matching UPC/GTIN · checked Jul 24, 2026
View on iHerb ↗Brand website
Official product-page candidate · UPC absentOfficial shopping lead; excluded from exact price comparisons.
Nutricost Vegan Vitamin D3 Capsules · Default Title. Confirm the package UPC/GTIN before buying.
Check brand website ↗Target
Not confirmedWe 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 confirmedWe only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search Walmart ↗Same UPC/GTIN observed across 2 sellers at the same price at check time.
The brand-page price is shown as a shopping lead only. It is excluded from the exact-product price difference because the page does not publish this record's matching UPC/GTIN.
Reference prices only · no affiliate links · every compared seller must publish the matching UPC/GTIN.
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 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.