“Biotin 6 mg per serving”
Evidence →The label promises 6 mg per serving. The panel says 6 mg. They match.
Exact product checked · GTIN 00074312016295Nature's Bounty Optimal Solutions · checked Sep 2, 2026 · on sale since Oct 3, 2024
Quick read · Nature's Bounty Optimal Solutions
Nature’s Bounty Optimal Solutions Advanced Hair
Checked against public sources between July 26 and September 2, 2026 · LookCloser does not sell or recommend supplements.
200gummies · 100 servings
Does the marketing hold up?
The label says 4 g of biotin in 4 gummies — but not what those 4 gummies weigh. That weight is the one number that would let anyone check the amount on the front. We did not weigh it ourselves, so this is an open question, not a problem we found.
Is the dose real?Panel read — dose not verified9 ingredients listed; no advertised amount we could confirm against them
What a serving costs$0.35per serving, at the checked price
Is it tested?No testing claim made
Who’s behind it?No exact match in USPTO
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 outno contradictions · no recalls
The label itself
What the Supplement Facts panel says
| Calories | 15 |
|---|---|
| Total Carbohydrate | 4 g |
| Total Sugars | 3 g |
| Includes Added Sugars | 3 g |
| Vitamin A | 150 mcg |
| Vitamin C | 18 mg |
| Vitamin E | 8.1 mg |
| Biotin | 6,000 mcg |
| Sodium | 10 mg |
Printed on the package: NON-GMO · VEGETARIAN FORMULA · GREAT TASTING · EXTRA STRENGTH · RAPID RELEASE
We read 9 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 against the label or linked source.
✓Matches the label1
Quick read · 6 useful findings
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
Needs explanationIs the label honest?
The label says 4 g of biotin in 4 gummies — but not what those 4 gummies weigh
That weight is the one number that would let anyone check the amount on the front. We did not weigh it ourselves, so this is an open question, not a problem we found.
Evidence and sources
A serving is 4 gummies, and the panel lists 4,000 mg — 4 g — of biotin in that serving. What the panel doesn’t give is the one number needed to check it: what a serving weighs. Gummies of this type usually run somewhere around 2.5 to 3.5 grams each, which would put 4 of them…
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 6 mg; the photo-read Supplement Facts panel shows Biotin at 6 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 · 9 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 findingCheckedWho is behind it?
The barcode identity checks out · 074312016295.
The barcode matches, so we are checking the right product rather than a look-alike.
Evidence and sources
Open Food Facts resolves 074312016295 to "HAIR, SKIN & NAILS GUMMIES" (NATURE'S BOUNTY) — consistent with this listing.
Locked evidence record →Open the full source-linked findingCheckedWho is behind it?
Registered in NIH's supplement label database (DSLD)
A government label filing makes the listed formula easier to inspect and compare over time.
Evidence and sources
Label #62846 “Hair, Skin & Nails Gummies With Biotin Strawberry Flavored” (Nature's Bounty Optimal Solutions), entered 2016-07-25, with the full Supplement Facts on file. NIH marks this label as off-market (superseded or discontinued version). …
Locked evidence record →Open the full source-linked findingCheckedCan you trust the review pattern?
Reviews rose from 239 to 457 between September 16, 2025 and August 26, 2026 — no sudden jump.
A count that moves steadily is ordinary. A sudden burst is what deserves a closer look.
Evidence and sources
Written reviews rose from 239 to 457 between September 16, 2025 and August 26, 2026. The largest rise inside any single 30-day window was about 32, so the count moved in steps rather than in one burst.
Locked evidence record →Open the full source-linked findingWhat remains open 2
- No FDA recall matched this brand in the current search.
- Brand ownership is not settled in this record.
These are evidence gaps, not strikes against the product.
Where it sells
Price check for this exact product
Amazon
Exact UPC/GTIN match$34.79
$0.35 per labeled serving
matching UPC/GTIN · checked Sep 2, 2026
View on Amazon ↗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.
No official brand storefront is confirmed in this record. That is neutral, but it prevents a direct brand-price, label, review, and document check.
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.