“Biotin 5 mg per serving”
Evidence →The label promises 5 mg per serving. The panel says 5 mg. They match.
Exact product checked · GTIN 00074312357138Nature's Bounty · checked Aug 5, 2026 · on sale since Apr 2, 2016USPTO returned 3 exact supplement-class owner records · inspect the identity trailPackage says distributed by: NATURE'S BOUNTY (NY), INC. · Bohemia, NY 11716 U.S.A.
Quick read · Nature's Bounty
Nature's Bounty Hair Skin and Nails 5000 mcg of…
Checked against public sources on August 5, 2026 · LookCloser does not sell or recommend supplements.
250softgels · 83 servings
Does the marketing hold up?
Testing claimed — documentation not found. The observed listing claims third-party testing without naming a lab or certifier. No product-bound report is saved, so the claim cannot be verified as stated. …
Is the dose real?✓Listing and panel agreeboth say 5,000 mcg of Biotin
What a serving costs$0.23per serving, at the checked price
Is it tested?Claimed — no lab or certificate found
Who’s behind it?USPTO lists 3 owner recordssame brand name, more than one registrant — we don’t choose between them
Is it the real thing?✓Barcode matches outside records
Trouble on record?✓No recalls found
“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.
1✓ checked out1◖ partly confirmed2? couldn’t verifyno contradictions · no recalls
The label itself
What the Supplement Facts panel says
| Calories | 15 |
|---|---|
| Total Fat | 1 g |
| Vitamin A (as Retinyl Palmitate) | 1,500 mcg |
| Vitamin C (as Ascorbic Acid) | 60 mg |
| Vitamin D (as D3 Cholecalciferol) | 20 mcg (800 IU) |
| Vitamin E (as Alpha Tocopheryl Acetate) | 10 mg |
| Thiamin (Vitamin B-1) (as Thiamin Mononitrate) | 3 mg |
| Riboflavin (Vitamin B-2) | 5 mg |
| Niacin (as Niacinamide) | 25 mg |
| Vitamin B-6 (as Pyridoxine Hydrochloride) | 5 mg |
| Folate | 333 mcg DFE (200 mcg folic acid) |
| Vitamin B-12 (as Cyanocobalamin) | 8 mcg |
| Biotin | 5,000 mcg |
| Pantothenic Acid (as d-Calcium Pantothenate) | 4 mg |
| Iron (as Ferrous Gluconate) | 3 mg |
| Zinc (as Zinc Gluconate) | 7.5 mg |
| Selenium (as Selenium Yeast) | 12.5 mcg |
| Manganese (as Manganese Gluconate) | 5 mg |
| Argan Oil (Argania spinosa) | 25 mg |
| PABA (Para-Aminobenzoic Acid) | 10 mg |
| Alpha Lipoic Acid | 10 mg |
| Horsetail (Equisetum arvense) (aerial) | 3 mg |
| Hydrolyzed Collagen | 50 mg |
| Hyaluronic Acid (as Sodium Hyaluronate) | 30 mg |
Printed on the package: Guaranteed Quality · Laboratory Tested · Made In The USA · Non-GMO
We read 24 lines from the package photograph. It is our transcript of the label, not the manufacturer’s panel, and it may be incomplete.
Marketing claims, checked
The checks, one by one
1 promise checks out. 3 could not be fully confirmed from public sources.
✓Matches the label1
◐Partly confirmed1
“support vibrant skin, support lustrous hair, support strong”
Evidence →Published research exists for ingredients in this formula. Whether this product’s doses match those studies could not be confirmed.
Ingredient research can support context, but it is not a trial of this exact product.
?Couldn’t verify independently2
“In The USA with select ingredients from around the”
Evidence →“Made in USA” can describe only final bottling. Ingredient-sourcing records were not located for this product.
“Tested”
Evidence →No named laboratory or lot-specific certificate was found for this exact product. A related brand page names no testing issuer and links no product-bound report; its UPC is not published. 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
EXTRA STRENGTH
Quick read · 4 useful findings
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
Public contextWho is behind it?
Registered owner records: NATURE'S BOUNTY, INC. · NATURE'S BOUNTY (NY), INC. · Société des Produits Nestlé S.A. (société anonyme (sa); SWITZERLAND)
The public ownership record is ambiguous. We show the exact candidates instead of choosing one by name similarity.
Evidence and sources
USPTO returned multiple live supplement-class records for the exact brand wordmark: NATURE'S BOUNTY, INC., NATURE'S BOUNTY (NY), INC., Société des Produits Nestlé S.A. (société anonyme (sa); SWITZERLAND). …
Locked evidence record →Open the full source-linked findingCheckedIs the label honest?
Listing claim matches the Supplement Facts panel
The label promise and the Supplement Facts amount agree.
Evidence and sources
The listing claims 5 mg; the photo-read Supplement Facts panel shows Biotin at 5 mg per serving — the listing text and its photo-read panel agree; this is internal consistency, not independent testing.
Locked evidence record →Open the full source-linked findingCheckedIs the label honest?
Every ingredient shows its amount · 24 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 findingPublic contextWill you get what you pay for?
Reaching a studied dose costs about $3,432/month
Comparing cost at a research-relevant amount shows how quickly the package is used and what the routine actually costs.
Evidence and sources
At 500.0 serving(s) a day to reach the low end of the studied range (2500–15000 mg), this product runs roughly $3,432 per month. A price observation, not a recommendation.
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.
Who owns the brand wordmark?
The brand has 3 exact supplement-class records
These are the USPTO records behind the brand name. We show them all rather than choosing one by similarity.
🇺🇸NATURE'S BOUNTY, INC.
NEW YORK, USA; SWITZERLAND · Registration 0963384
55 NORTH MALL, PLAINVIEW, NEW YORK 11803, UNITED STATES
Goods covered by this record
US 018: FOOD SUPPLEMENT CONTAINING VITAMINS AND MINERALS.; US 046: CONCENTRATED PROTEIN FOOD.
🇺🇸NATURE'S BOUNTY (NY), INC.
NEW YORK, USA; SWITZERLAND · Registration 5165421
2100 SMITHTOWN AVENUE, LEGAL DEPT., RONKONKOMA, NEW YORK 11779, UNITED STATES
Goods covered by this record
IC 005: Dietary and nutritional supplements; Food supplements; Herbal supplements; Probiotic supplements; Vitamin and mineral supplements.
🇨🇭Société des Produits Nestlé S.A. (société anonyme (sa); SWITZERLAND)
SWITZERLAND · Registration 7583162
SWITZERLAND); CH-1800 Vevey, SWITZERLAND
Goods covered by this record
IC 005: Vitamins; dietary supplements; mineral supplements; nutritional supplements; vitamin preparations; concentrated protein dietary supplements; plant-based dietary supplements; dietetic supplements adapted for medical use; food supplements; probiotic supplements.
This answers who owns registrations for the brand wordmark. It does not by itself prove which entity made, imported, or sold this specific product. Open USPTO source ↗
Research behind the findings
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.
Background reading
What the research says about these amounts
Not a score. Studies disagree with each other and change over time, so this sits beside the evidence rather than counting toward it — it is here so you can read the sources yourself.
The panel lists 50 mg of collagen peptides per serving. Studies we found used 2.5 g–15 g a day, so this sits below that range.
0studied 2.5 g–15 g
Study ranges differ between trials and change as research changes. This is background reading, not a pass, a failure, or a recommendation.
The panel lists 8 mg of zinc per serving. Studies we found used 8 mg–40 mg a day, so this sits below that range.
0studied 8 mg–40 mg
Study ranges differ between trials and change as research changes. This is background reading, not a pass, a failure, or a recommendation.
Where it sells
Price check for this exact product
Amazon
Exact UPC/GTIN match$18.99
$0.23 per labeled serving
matching UPC/GTIN · checked Aug 5, 2026
View on Amazon ↗Brand website
Official product-page candidate · UPC absent$0.00
Official shopping lead; excluded from exact price comparisons.
Advanced Hair, Skin & Nails · Default Title. Confirm the package UPC/GTIN before buying.
Check brand website ↗iHerb
Not confirmedNo exact listing saved
We 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 confirmedNo exact listing saved
We 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 confirmedNo exact listing saved
We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search Walmart ↗Only one exact price was available at build time; prices change by date, seller, and promotion.
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 to inspect the evidence?
The full report shows every source, the exact unresolved question, and the documentation that would settle it.
Record built August 05, 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.