“Biotin 10 mg per serving”
Evidence →The label promises 10 mg per serving. The panel says 10 mg. They match.
Exact product checked · GTIN 00850068584758Rainbow Light · checked Aug 1, 2026 · on sale since Jan 28, 2026USPTO returned 2 exact supplement-class owner records · inspect the identity trailPackage says manufactured by: Rainbow Light Nutritional Systems, LLC · Sunrise, FL 33323 USA
Quick read · Rainbow Light
Rainbow Light Biotin, Collagen + Hyaluronic Acid Supplement
Checked against public sources on August 1, 2026 · LookCloser does not sell or recommend supplements.
Does the marketing hold up?
Ingredient amounts are hidden inside “Vibrant Beauty Blend”. The panel lists “Vibrant Beauty Blend” (100,000 mcg) as a combined amount. A blend total can’t tell you whether any single ingredient reaches a dose used in research.
Is the dose real?✓Listing and panel agreeboth say 10,000 mcg of Biotin
What a serving costs$0.42per serving, at the checked price
Is it tested?No testing claim made
Who’s behind it?USPTO lists 2 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 outno contradictions · no recalls
The label itself
What the Supplement Facts panel says
| Total Carbohydrate | <1 g |
|---|---|
| Biotin (as d-Biotin) | 10,000 mcg |
| Vibrant Beauty Blend | 100,000 mcg |
Printed on the package: NON-GMO · GLUTEN FREE
We read 3 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 · 2 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: Rainbow Light Nutritional Systems, Inc. · Rainbow Light Nutritional Systems, LLC
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: Rainbow Light Nutritional Systems, Inc., Rainbow Light Nutritional Systems, LLC. These records answer who owns registrations for the brand; the separate product-to-owner or manufacturer link…
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 10 mg; the photo-read Supplement Facts panel shows Biotin (as d-Biotin) at 10 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 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.
- No dated review-history series is on file yet.
These are evidence gaps, not strikes against the product.
Who owns the brand wordmark?
The brand has 2 exact supplement-class records
These are the USPTO records behind the brand name. We show them all rather than choosing one by similarity.
🇺🇸Rainbow Light Nutritional Systems, Inc.
DELAWARE, USA; FLORIDA, USA · Registration 1805769
125 McPherson Street, Santa Cruz, CALIFORNIA 95060, UNITED STATES
Goods covered by this record
IC 005: vitamins and nutritional dietary supplements.
🇺🇸Rainbow Light Nutritional Systems, LLC
DELAWARE, USA · Registration 7125060
3900 Veterans Memorial Highway Suite 200, Bohemia, New York 11716, UNITED STATES
Goods covered by this record
IC 005: Dietary and nutritional 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.
Where it sells
Price check for this exact product
Amazon
Exact UPC/GTIN match$12.74
$0.42 per labeled serving
matching UPC/GTIN · checked Aug 1, 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.
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.