Found on the brand's own store
The brand's store lists this exact barcode as “Hair + Beard Growth for Men” (variant: Default Title) — identity confirmed across retailer listings.
Full record · 732940942897 · back to the summary
Rainbow Nutrients, Llc Hair + Beard Growth for Men
Exact product checkedGTIN 00732940942897 · checked 2026-07-24
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How to read this report
What this is. We compare what a listing claims against what public records show — label arithmetic, barcode registries, NIH’s label catalog, FDA enforcement data, certification registries, and published research. Every statement below traces to one of those.
What the states mean. Confirmed = an outside source agrees. Contradicted = an outside source disagrees. Caution = something needs explaining. No data = we looked and found nothing — a gap, not a strike.
What it is not. A clean record is not an endorsement and never proof a product works. A thin record is not an accusation. We publish evidence and gaps; the conclusion is yours. Nothing here is medical advice.
Something wrong? Every figure is meant to be checkable — sources are named and linked. Send a correction and we’ll fix the record.
Panel, decoded
The 10 mg biotin claim matches the panel
MARKETING10 mg — listing title
PANELBiotin 10 mg — same amountPantothenic Acid (as Calcium Pantothenate) 100 mg + OptiMSM® Methylsulfonylmethane (MSM) 400 mg + Hydrolyzed Bovine Collagen 200 mg + Medium Chain Triglycerides 100 mg + Ultimate Hair + Beard Proprietary Complex 300 mg
matches panelWe did the comparison: the listing claims 10 mg of biotin, and the listing-image panel shows 10 mg biotin serving size: 2 capsules. Those amounts agree. This is internal consistency, not independent lab testing.
| Panel row | Amount | %DV | What to notice |
|---|---|---|---|
| Vitamin A (as Retinyl Palmitate) | 2,700 mcg | — | |
| Vitamin C (Ascorbic Acid) | 100 mg | — | |
| Vitamin D3 (Cholecalciferol) | 2.5 mcg | — | |
| Vitamin E (as D-alpha Tocopheryl Succinate) | 10 mg | — | |
| Thiamin (as Thiamin HCI) | 5 mg | — | |
| Riboflavin | 5 mg | — | |
| Niacin (as Niacinamide) | 5 mg | — | |
| Vitamin B6 (as Pyridoxine HCI) | 5 mg | — | |
| Folate (as 334mcg Folic Acid) | 568 mcg DFE | — | |
| Vitamin B12 (as Cyanocobalamin) | 20 mcg | — | |
| Biotin | 10,000 mcg | — | |
| Pantothenic Acid (as Calcium Pantothenate) | 100 mg | — | |
| Zinc (as Zinc Citrate) | 15 mg | — | |
| OptiMSM® Methylsulfonylmethane (MSM) | 400 mg | — | |
| Hydrolyzed Bovine Collagen | 200 mg | — | |
| Medium Chain Triglycerides | 100 mg | — | |
| Ultimate Hair + Beard Proprietary Complex | 300 mg | — |
FDA rules (21 CFR 101.36) require the amount of each dietary ingredient per serving unless hidden in a listed “proprietary blend” (legal, but a transparency yellow flag). A label stating no amount at all is non-compliant — a checkable red flag. This panel states amounts; any remaining comparison concerns the front-label framing.
vision:google/gemini-2.5-flash Amounts are shown as listed panel data, not independently lab-tested contents.
Every check we ran
Confirmed evidence
What checked out1
These checks found support in the public record. They confirm specific facts, not the product as a whole.
Confirmed
Documented concerns
What needs caution1
These are documented contradictions or claims that need more evidence. They are separate from missing data.
Unresolved public record
What is still missing7
We looked for these signals but could not settle them from public sources. A gap is not a strike.
Review-count history: not available
Marketplace rating not shown★ — rating count unavailable. No exact-listing count history was available, so no review-pattern claim is made.
“Lab tested” claimed, but no lab or report named
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. NSF, IFOS, USP, and Informed-Sport were not checked in this record.
Multi-ingredient formula — panel read, serving weight unknown
We read the full Supplement Facts panel from the listing-image panel (below), but the label doesn’t state a serving weight, so the arithmetic can’t run. A gap in the label’s information, not evidence of a problem.
Research context is available for the listed ingredients
Published sources describe how collagen peptides, zinc have been studied. This is ingredient context only; the record does not establish that this product delivers the studied dose or outcome. Sources: PubMed search: collagen peptide supplementation trial, WebMD search: collagen.
Public label filing not saved
We have not found a public label filing for this exact product. That is a gap in our records, not evidence that no filing exists.
Brand ownership record not saved
This record does not hold an exact, supplement-class public ownership record for the brand. That is a LookCloser coverage gap, not evidence that the brand has no owner or that the product is improper.
UPC valid, no independent record
Check digit passes; no third-party database record found yet. Coverage gaps are common — not a strike.
What to ask and check
What would settle the open questions
Why is this shown?
Everything we couldn’t verify is something a person can still ask about. Rather than leave gaps sitting as dead ends, we turn each one into a specific question — the exact document, citation, or number that would settle it — plus the things you can confirm yourself with the bottle in your hand.
Ask the brand or seller
1
Answered by the panel: the 0.01 g listing number equals Thiamin (as Thiamin HCI) 5 mg + Riboflavin 5 mg. What lot-specific document confirms those listed amounts?
The panel resolves what the headline number includes. The remaining question is whether the product in hand matches those listed amounts; ask for a lot-specific certificate of analysis.
2
Can you send the certificate of analysis (COA) for the lot number on my bottle?
A real COA names the testing laboratory, the test date, the lot it covers, and what was measured. “Third-party tested” with no document behind it is a marketing sentence.
3
Which specific study supports this claim — and was it run on this exact formula?
Ask for the citation, how many people took part, the dose used, and whether the study tested this product or just one ingredient in it. Ingredient research is not product evidence.
4
Is this label filed with NIH’s Dietary Supplement Label Database (DSLD)?
Filing is voluntary, so absence proves nothing — but a filed label puts the full ingredient table on public record where anyone can read it.
5
Where are the ingredients sourced, and where is the product manufactured?
“Made in USA” can describe only the final bottling step. Ask which country the actives came from and whether the facility is audited.
6
What is the amount of each ingredient inside the proprietary blend?
A blend total tells you nothing about whether any single ingredient reaches a dose used in research. Brands may decline — that answer is informative too.
Most brands and sellers publish a contact route. A clear answer adds evidence to the record; no answer leaves the question open.
Check for yourself — no one’s permission needed
1
Compare the panel on the bottle in your hand to the one shown in this record.
Ours was read from listing photos and can contain reading errors. The physical label is the source of truth — if they disagree, tell us and we’ll correct the record.
2
Scan the barcode on the package and confirm it reads 732940942897.
A mismatch between the barcode on the box and the one on the listing is worth pausing over — it can indicate a different variant, a repack, or a counterfeit.
3
Check the lot number and expiry on the bottle against any COA you’re given.
A certificate that doesn’t name your lot doesn’t describe what you’re holding.
These are the open questions on this specific record — not a warning about the product, and not a suggestion to buy or avoid it. Getting them answered is how you decide for yourself.
What the listing promises — claim by claim
Why is this shown?
A listing’s promises are the reason people buy. Each one gets its own row: what was promised, what evidence would settle it, and what we could actually find. We never call a claim false — only whether proof proportionate to it exists on the public record.
| Claim | Status | What we found |
|---|---|---|
| Clinical-evidence claim “…FORMULATED WITH CLINICALLY PROVEN…” | No evidence located We looked for: a named, citable clinical study of this product or formula | 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. |
| Quality-testing claim “…3RD PARTY CERTIFIED FOR PURITY & POTENCY…” | Claimed, not verifiable We looked for: the observed listing, saved brand product page, any linked COA or test report; NSF, IFOS, USP, Informed-Sport were not queried | No named laboratory or lot-specific certificate was found for this exact product. The exact brand page names no testing issuer and links no product-bound report. 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. |
| Manufacturing claim “…GMP FACILITY…” | Partly supported We looked for: the facility registration or certificate behind the claim | “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. |
| Origin claim “…MADE IN USA WITH GLOBALLY SOURCED INGRED…” | Claimed, not verifiable We looked for: customs records or label filings showing where ingredients were sourced and where it was made | “Made in USA” can describe only final bottling. Ingredient-sourcing records were not located for this product. |
| Benefit claim “…Supports Hair Regrowth*…” | Partly supported We looked for: whether the ingredient doses on the label match the doses used in published research | Published research exists for ingredients in this formula. Whether this product’s doses match those studies could not be confirmed. |
“No evidence located” does not mean a claim is false — it means the seller has not put evidence proportionate to the claim on the public record, and we could not find any. Absence of proof is not proof of absence.
This label vs. the doses studied
Why is this shown?
An ingredient can be well-studied at one amount and barely studied at the amount in your bottle. This lines the label up against the doses researchers actually used. It answers ‘are these the same numbers?’ — never ‘should you take this?’
| Ingredient | Where this label sits | Reading |
|---|---|---|
| Hydrolyzed Bovine Collagen | shaded = doses used in studies (2.5 g–15 g) · bar = this label | 200 mg — below the studied range |
| Zinc (as Zinc Citrate) | shaded = doses used in studies (8 mg–40 mg) · bar = this label | 15 mg — within the studied range |
Matching a studied dose does not mean the product works, and missing it does not mean it fails — it shows whether the label and the research are talking about the same amounts. Not a recommendation to take any amount.
Documented cautions
- zinc — daily oral use; sustained high intakes can interfere with copper absorption — a documented interaction, not advice
Statements from published sources about these ingredients — not advice about this product, and not a complete safety review. Anyone taking medication should talk to a pharmacist or clinician.
Verifiability profile — 3 of 6 public signals
✓ UPC / GTIN published✓ Supplement Facts visible in photos✓ Brand's own store found· Per-serving dose established — not published· Found in NIH's label catalog (DSLD) — not published· Third-party lab named or registry-certified — not published
What this listing gives the public to check. Publishing these signals doesn't prove quality — but withholding them means claims can only be taken on faith.
Identity
| UPC (barcode) — also our record ID | 732940942897 — via source listing UPC |
| Brand | Rainbow Nutrients, LLC |
| Source listing identifier | B09XTPZQYH |
| Retailer listing title | Hair + Beard Growth Vitamins for Men | Biotin 10,000mcg, Collagen, Pat… show full titleHair + Beard Growth Vitamins for Men | Biotin 10,000mcg, Collagen, Patented OptiMSM®, goMCT®, Saw Palmetto | 60 Day Supply | Naturally Regrow Stronger, Thicker, Healthier Hair & Stops Hair Los |
From the label (photo-read)
| Serving size | Serving Size: 2 Capsules |
| Servings per container | 60 |
| Pack statement | 120 CAPSULES |
| Badges printed on pack | NON GMO INGREDIENTS, 3RD PARTY CERTIFIED FOR PURITY & POTENCY, LAB TESTED, MADE IN USA WITH GLOBALLY SOURCED INGRED, GMP FACILITY, Non-GMO, MADE WITH, NON, OptiMSM®, NON GMO, PROFESSIONAL GRADE, MADE |
Supplement Facts panel (photo-read):
| Ingredient | Amount per serving | Reading confidence |
|---|---|---|
| Vitamin A (as Retinyl Palmitate) | 2,700 mcg | High clearly legible in the photo |
| Vitamin C (Ascorbic Acid) | 100 mg | High clearly legible in the photo |
| Vitamin D3 (Cholecalciferol) | 2.5 mcg | High clearly legible in the photo |
| Vitamin E (as D-alpha Tocopheryl Succinate) | 10 mg | High clearly legible in the photo |
| Thiamin (as Thiamin HCI) | 5 mg | High clearly legible in the photo |
| Riboflavin | 5 mg | High clearly legible in the photo |
| Niacin (as Niacinamide) | 5 mg | High clearly legible in the photo |
| Vitamin B6 (as Pyridoxine HCI) | 5 mg | High clearly legible in the photo |
| Folate (as 334mcg Folic Acid) | 568 mcg DFE | High clearly legible in the photo |
| Vitamin B12 (as Cyanocobalamin) | 20 mcg | High clearly legible in the photo |
| Biotin | 10,000 mcg | High clearly legible in the photo |
| Pantothenic Acid (as Calcium Pantothenate) | 100 mg | High clearly legible in the photo |
| Zinc (as Zinc Citrate) | 15 mg | High clearly legible in the photo |
| OptiMSM® Methylsulfonylmethane (MSM) | 400 mg | High clearly legible in the photo |
| Hydrolyzed Bovine Collagen | 200 mg | High clearly legible in the photo |
| Medium Chain Triglycerides | 100 mg | High clearly legible in the photo |
| Ultimate Hair + Beard Proprietary Complex | 300 mg | High clearly legible in the photo |
Claims printed on the packaging:
“Supports Hair Regrowth*” · “Thicker & Manlier Beard*” · “Fights against Hair Loss*” · “10,000mcg of Biotin” · “60 DAY SUPPLY” · “With OptiMSM®” · “goMCT®” · “FORMULATED WITH CLINICALLY PROVEN”
Read by a vision model from 8 listing photos — verbatim extraction; OCR errors possible. Spot a mistake? It will be corrected on review.
Where it sells
| Seller | Price |
|---|---|
| Retailer listing ↗ | $29.95 checked Sep 03, 2026 — varies by variant/session; price history pending |
| Brand store (www.rainbownutrients.com) ↗ | $29.95 variant: Default Title — matching UPC/GTIN |
Official brand domain: www.rainbownutrients.com. This storefront does not expose a complete public catalog count.
Reference links for identification only — LookCloser has no affiliate relationships and earns nothing from any link on this page.
Ingredient science — NIH references
Vitamin A — NIH ODS · MedlinePlus · PubMed (10,699) · UL 3000 mcg (preformed vitamin A (retinol); excludes beta-carotene)
Vitamin C — NIH ODS · MedlinePlus · PubMed (11,019) · UL 2000 mg (total intake, adults)
Vitamin D — NIH ODS · MedlinePlus · PubMed (26,500) · UL 100 mcg (adults; 100 mcg = 4,000 IU)
Vitamin E — NIH ODS · MedlinePlus · PubMed (12,326) · UL 1000 mg (supplemental alpha-tocopherol, adults)
Thiamin — NIH ODS · MedlinePlus · PubMed (1,262) · no UL established
Riboflavin — NIH ODS · MedlinePlus · PubMed (3,172) · no UL established
Niacin — NIH ODS · MedlinePlus · PubMed (2,689) · UL 35 mg (supplemental/added niacin, adults)
Vitamin B6 — NIH ODS · MedlinePlus · PubMed (2,372) · UL 100 mg (adults; chronic high intake linked to neuropathy)
Folate — NIH ODS · MedlinePlus · PubMed (10,628) · UL 1000 mcg (synthetic folic acid from supplements/fortified food)
Vitamin B12 — NIH ODS · MedlinePlus · PubMed (5,006) · no UL established
Biotin — NIH ODS · MedlinePlus · PubMed (1,606) · no UL; high doses interfere with lab tests
Pantothenic Acid — NIH ODS · MedlinePlus · PubMed (601) · no UL established
Zinc — NIH ODS · MedlinePlus · PubMed (19,708) · UL 40 mg (adults, from all sources)
Reference data from the NIH Office of Dietary Supplements, IOM Dietary Reference Intakes, and PubMed. A Tolerable Upper Intake Level is a documented reference figure, not a safety verdict — both the listed amount and the reference are shown for your own judgment. LookCloser gives no medical advice.
Related research & consistency
collagen peptides — PubMed search: collagen peptide supplementation trial · WebMD search: collagen · ClinicalTrials.gov — 587 registered studies
ℹ Use pattern in research: daily oral use over 8+ weeks in studies.
zinc — NIH ODS — Zinc fact sheet · PubMed search: zinc supplementation trial · ClinicalTrials.gov — 1,598 registered studies
ℹ Use pattern in research: daily oral use; sustained high intakes can interfere with copper absorption — a documented interaction, not advice.
These notes state where label numbers and marketing framing sit relative to published research — documentation for your own judgment, not medical advice. LookCloser does not advise for or against taking any supplement.
Record 732940942897 · built September 03, 2026 · lookcloser.ai · corrections@lookcloser.ai