Exact trademark owner identified
USPTO lists Ronald Campbell (INDIVIDUAL) in United Kingdom for the exact brand wordmark. This identifies the USPTO mark owner or applicant; it does not by itself prove who manufactures or sells this product.
Full record · lc-fe7aaec2 · back to the summary
DHT Blocker for Men | Hair Growth Supplement with Saw Palmetto & Biotin
Exact product checkedGTIN not published · checked 2026-08-03
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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
What the label discloses
7listed rows
4separately quantified
3combined blend totals
The listing-image panel publishes 4 separately ingredients with amounts and 3 combined blend totals. Ingredients inside a blend do not have separate amounts.
| Panel row | Amount | %DV | What to notice |
|---|---|---|---|
| Vitamin D3 (as Cholecalciferol) | 25 mcg | — | |
| Zinc (as Zinc Gluconate) | 12 mg | — | |
| Saw Palmetto Extract (Serenoa repens) (Fruit) | 400 mg | — | |
| Lycopene (from Tomato (Solanum lycopersicum, Fruit)) | 15 mg | — | |
| DHT & Scalp Proprietary Blend | 400 mg | — | |
| Hair Proprietary Blend | 200 mg | — | |
| Energy & Body Protection Blend | 100 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; the open question is whether those listed amounts are independently verified and how they compare with relevant research.
vision:claude-cli:subscription Amounts are shown as listed panel data, not independently lab-tested contents.
Every check we ran
Confirmed evidence
What checked out2
These checks found support in the public record. They confirm specific facts, not the product as a whole.
Confirmed
The review count moved gradually, not in one burst
Written reviews rose from 79 to 164 between July 14, 2025 and July 27, 2026. The largest rise inside any single 30-day window was about 36, so the count moved in steps rather than in one burst.
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 missing5
We looked for these signals but could not settle them from public sources. A gap is not a strike.
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 zinc have been studied. This is ingredient context only; the record does not establish that this product delivers the studied dose or outcome. Sources: NIH ODS — Zinc fact sheet, PubMed search: zinc supplementation trial.
No recall found — which is not the same as being tested
This means only that no enforcement record matched the brand name — it does not mean the product was tested, reviewed, or cleared by FDA. New and untested products also have no recall records.
This item belongs to a catalog variation family
The paid catalog links this exact item to a parent listing. Review counts on public product pages may be shared across sizes, flavors, or other variants, so the count history is listing context — not evidence that reviewers received or tested this exact variant.
180-day review-count history is on file
Exact-listing history records written-review counts from 78 on 2025-07-04 to 164 on 2026-07-27 (net +86). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.
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
What is the product’s UPC or GTIN?
The barcode is how a product gets matched to outside records — certification registries, label databases, recall data. Without it, almost nothing can be cross-checked.
2
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.
3
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
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 |
|---|---|---|
| Benefit claim “…Combining with Biotin, our DHT hair blocker blocker for men helps to manage DHT levels and improve scalp wellness, directly addressing factors linked to male hair thinni” | 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 |
|---|---|---|
| Zinc (as Zinc Gluconate) | shaded = doses used in studies (8 mg–40 mg) · bar = this label | 12 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 — 2 of 6 public signals
✓ Supplement Facts visible in photos✓ Brand's own store found· Per-serving dose established — not published· UPC / GTIN published — 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
| LookCloser record ID | lc-fe7aaec2 (internal — no barcode published, which limits cross-checking) |
| Brand | Vivaravida |
| Source listing identifier | B0DG5S415H |
| Retailer listing title | DHT Blocker for Men | Hair Growth Supplement with Saw Palmetto & Bioti… show full titleDHT Blocker for Men | Hair Growth Supplement with Saw Palmetto & Biotin - Hair Growth Vitamins - Hair Regrowth - Natural Hair Loss Supplements Liquid-Filled - Proprietary Herbal Blends (180 Capsules) |
| USPTO brand owner | Ronald Campbell · INDIVIDUAL · United Kingdom |
| Owner filed address | 14 Thompsons Lane, MELDON, NE613TW, UNITED KINGDOM |
From the label (photo-read)
| Serving size | 3 Liquid-Filled Capsules |
| Servings per container | 30 |
| Pack statement | 90 Liquid-Filled Capsules |
| Badges printed on pack | Vegan, Natural, Gluten Free, No Additives |
Supplement Facts panel (photo-read):
| Ingredient | Amount per serving | Reading confidence |
|---|---|---|
| Vitamin D3 (as Cholecalciferol) | 25 mcg | High clearly legible in the photo |
| Zinc (as Zinc Gluconate) | 12 mg | High clearly legible in the photo |
| Saw Palmetto Extract (Serenoa repens) (Fruit) | 400 mg | High clearly legible in the photo |
| Lycopene (from Tomato (Solanum lycopersicum, Fruit)) | 15 mg | High clearly legible in the photo |
| DHT & Scalp Proprietary Blend | 400 mg | High clearly legible in the photo |
| Hair Proprietary Blend | 200 mg | High clearly legible in the photo |
| Energy & Body Protection Blend | 100 mg | High clearly legible in the photo |
Claims printed on the packaging:
“DHT Blocker For Men” · “with Saw Palmetto & Biotin” · “SUPERIOR ABSORPTION” · “DIETARY SUPPLEMENT” · “As a dietary supplement, particularly for men's health.” · “DHT inhibition, reduce hair loss” · “Packed with essential vitamins and minerals, antioxidant benefits.” · “DHT BLOCKER”
Read by a vision model from 7 listing photos — verbatim extraction; OCR errors possible. Spot a mistake? It will be corrected on review.
Ingredient science — NIH references
Vitamin D — NIH ODS · MedlinePlus · PubMed (26,500) · UL 100 mcg (adults; 100 mcg = 4,000 IU)
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
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 lc-fe7aaec2 · built August 04, 2026 · lookcloser.ai · corrections@lookcloser.ai