Published research exists for ingredients in this formula. Whether this product’s doses match those studies could not be confirmed.

Forestleaf Collagen Peptides
Checked against public sources on July 31, 2026 · LookCloser does not sell or recommend supplements.
Does the marketing hold up?
Ingredient amounts are hidden inside “Advanced Collagen Type I, II, III Complex”. The panel lists “Advanced Collagen Type I, II, III Complex” (11 grams) as a combined amount. A blend total can’t tell you whether any single ingredient reaches a dose used in research.
“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 | 40 |
|---|---|
| Protein | 10 g |
| Sodium | 20 mg |
| Advanced Collagen Type I, II, III Complex | 11 grams |
Printed on the package: PASTURE RAISED GRASS FED · Non-GMO · NO DAIRY · NO SESAME · NO GLUTEN · NO SOY · NO EGG · NO PEANUTS
We read 4 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.
The barcode identity checks out · 645080875768.
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 “Collagen Peptides” (variant: 16oz) — identity confirmed across retailer listings.
Locked evidence record →Open the full source-linked findingWhat remains open 4
- No FDA recall matched this brand in the current search.
- We have not found a public label filing for this exact product.
- Barcode checksum is valid; no independent product record was found.
- Brand ownership is not settled in this record.
These are evidence gaps, not strikes against the product.
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.
Price check for this exact product
Amazon
Exact UPC/GTIN match$0.64 per labeled serving
matching UPC/GTIN · checked Jul 31, 2026
View on Amazon ↗Brand website
Exact UPC/GTIN match$0.71 per labeled serving
matching UPC/GTIN · checked Jul 31, 2026
View on Brand website ↗iHerb
Not confirmedWe 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 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. Amazon was lowest at $26.06; Brand website was highest at $28.95 — a $2.89 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 August 02, 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.