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

Nutraharmony Biotin Collagen & Keratin
Checked against public sources between July 21 and September 3, 2026 · LookCloser does not sell or recommend supplements.
Does the marketing hold up?
7 ingredients’ amounts are hidden inside “Proprietary Blend”. A blend total may be legal, but it prevents you from knowing whether any individual ingredient reaches a meaningful amount.
“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 A | 1,200 mcg RAE 133% |
|---|---|
| Pantothenic Acid | 50 mg 1,000% |
| Vitamin D3 | 3 mcg (120 IU) 15% |
| Calcium | 80 mg 6% |
| Thiamin (vitamin B1) | (5,000 mcg) 5 mg 417% |
| Phosphorus | 40 mg 3% |
| Riboflavin (vitamin B2) | (5,000 mcg) 5 mg 385% |
| Proprietary Blend | 400 mg ** |
| Niacin (vitamin B3) | (5,000 mcg) 5 mg 31% |
| Vitamin B6 | (5,000 mcg) 5 mg 294% |
| Folate | 340 mcg DFE 85% |
| Fish Collagen | 310 mg ** |
| Hyaluronic Acid | 10 mg ** |
| Vitamin B12 | 20 mcg 833% |
| Biotin (vitamin B7) | 5,000 mcg 16,667% |
Printed on the package: CGMP COMPLIANT · INCLUDES NATURAL INGREDIENTS · MADE WITH NON-GMO INGREDIENTS · LABORATORY QUALITY CONTROL · CLINICALLY TESTED PRODUCT · NUTRA HARMONY · CLINICALLY TESTED · CLINICALLY TESTED¹
We read 15 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
1 promise needs a closer look.
◐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.
△Claimed without support found1
We found no named, citable study of this product or formula. The claim may rest on ingredient research rather than a trial of this product.
?Couldn’t verify independently2
“Made in USA” can describe only final bottling. Ingredient-sourcing records were not located for this product.
No named laboratory or lot-specific certificate was found for this exact product. The exact brand page repeats a testing claim but names no issuer. NSF, IFOS, USP, and Informed-Sport were not checked in this record. This is a public-evidence limit, not a finding that testing did not occur.
We looked and found no public proof. That does not count against the product.
Marketing language, not scored
PREMIUM BEAUTY COMPLEX*
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
The barcode identity checks out · 608011224806.
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 “Biotin Collagen & Keratin | Hair Skin & Nails Vitamins” (variant: 60 Capsules) — identity confirmed across retailer listings.
Locked evidence record →Open the full source-linked findingWhat remains open 2
- No FDA recall matched this brand in the current search.
- We have not found a public label filing for this exact product.
These are evidence gaps, not strikes against the product.
Filed address
312 W 2nd St, Office 5161, CASPER, Wyoming 82601, 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 ↗
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
Brand website
Exact UPC/GTIN match$0.93 per labeled serving
matching UPC/GTIN · checked Jul 21, 2026
View on Brand website ↗Amazon
Exact UPC/GTIN match$0.93 per labeled serving
matching UPC/GTIN · checked Sep 1, 2026
View on Amazon ↗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 at the same price at check time.
The observed listing and exact brand page repeat 25000 mcg. That confirms cross-page consistency of the published claim, not the product contents.
Reference prices only · no affiliate links · every compared seller must publish the matching UPC/GTIN.
Does the brand page tell the same story?
The exact brand page is higher by 0.07 points. The brand page publishes 442; the retailer surface shows 18,765. Different systems can collect different review pools, so this is a signal to inspect, not proof that reviews were manipulated.
The brand page did not expose a complete star-by-star breakdown in the captured structured data, so LookCloser cannot test whether lower-star reviews were omitted. Source: exact barcode-bound brand product page · retailer surface · counts do not prove authenticity.
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.