A testing body is named on the listing, but we found no lot-specific certificate of analysis.

Forestleaf Vitamin D3 50,000 iu
Checked against public sources between July 23 and September 1, 2026 · LookCloser does not sell or recommend supplements.
Does the marketing hold up?
Every ingredient shows its amount · 1 ingredients listed. Every ingredient shows its real amount — nothing is hidden in a proprietary blend.
“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
| Vitamin D3 (Cholecalciferol) | 1,250 mcg |
|---|
Printed on the package: TESTED FOR ABSORPTION · MADE IN USA · NON GMO INGREDIENTS · KOSHER · NSF-Certified · GMP Quality · LAB TESTED 3RD PARTY · MADE IN THE USA
We read 1 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
“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.
Ingredient research can support context, but it is not a trial of this exact product.
?Couldn’t verify independently1
“Made in USA” can describe only final bottling. Ingredient-sourcing records were not located for this product.
We looked and found no public proof. That does not count against the product.
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
Every ingredient shows its amount · 1 ingredients listed.
Every ingredient shows its real amount — nothing is hidden in a proprietary blend.
Evidence and sources
The panel gives a per-ingredient amount rather than hiding quantities inside a proprietary blend, so each one can be compared to published research.
Locked evidence record →Open the full source-linked findingThe barcode identity checks out · 645080875713.
The barcode matches, so we are checking the right product rather than a look-alike.
Evidence and sources
The brand's store lists this exact barcode as “Vitamin D3 50,000 iu” (variant: 120) — identity confirmed across retailer listings.
Locked evidence record →Open the full source-linked findingWhat remains open 2
- We have not found a public label filing for this exact product.
- Brand ownership is not settled in this record.
These are evidence gaps, not strikes against the product.
Price check for this exact product
Brand website
Exact UPC/GTIN match$0.17 per labeled serving
matching UPC/GTIN · checked Jul 23, 2026
View on Brand website ↗Amazon
Exact UPC/GTIN match$0.17 per labeled serving
matching UPC/GTIN · checked Aug 29, 2026
View on Amazon ↗iHerb
Exact UPC/GTIN match$0.17 per labeled serving
matching UPC/GTIN · checked Jul 24, 2026
View on iHerb ↗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 3 sellers. Brand website was lowest at $19.95; iHerb was highest at $19.99 — a $0.04 range at check time.
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.