Exact trademark owner identified
USPTO lists Wang Chenglong (INDIVIDUAL) in China 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-b1ab622a · back to the summary
Lazpowfi Hair Growth Products, Biotin 10000mcg
Exact product checkedGTIN not published · checked 2026-07-23
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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 vitamin b7 (biotin) claim matches the panel
MARKETING10 mg — listing title
PANELVitamin B7 (Biotin) 10 mg — same amountProprietary Blend 2 g
matches panelWe did the comparison: the listing claims 10 mg of vitamin b7 (biotin), and the listing-image panel shows 10 mg vitamin b7 (biotin) 4 capsules. Those amounts agree. This is internal consistency, not independent lab testing.
| Panel row | Amount | %DV | What to notice |
|---|---|---|---|
| Vitamin B7 (Biotin) | 10000mcg | — | |
| Vitamin D (Cholecalciferol) | 50mcg | — | |
| Vitamin C (Ascorbic Acid) | 100mg | — | |
| Vitamin A (Beta-Carotene) | 1500mcgRAE | — | |
| Vitamin E (D-alpha Tocopherol) | 10mg | — | |
| Vitamin B3 (Niacinamide) | 10mg | — | |
| Calcium (Calcium Carbonate) | 40mg | — | |
| Potassium (Potassium Chloride) | 50mg | — | |
| Zinc (Zinc Glycinate) | 20mg | — | |
| Selenium (L-selenomethionine) | 200mcg | — | |
| Iodine (Organic Kelp) | 225mcg | — | |
| Proprietary Blend | 2000mg | — | |
| Glycine | 20mg | — | |
| L-Lysine | 20mg | — | |
| L-Proline | 20mg | — | |
| L-Hydroxyproline | 20mg | — | |
| Hyaluronic acid | 20mg | — |
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 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 fell from 94 to 53 between July 29, 2025 and June 6, 2026. The largest rise inside any single 30-day window was about 125, 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 missing4
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.
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 92 on 2025-07-28 to 53 on 2026-06-06 (net -39). 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
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.
2
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.
3
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.
4
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 |
|---|---|---|
| Quality-testing claim “…third party tested” | 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. No exact brand product page was available for a document check. 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 “…【Suitable for men and women】Our GMP-certified facility and ingredients are gluten-free, non-GMO, soy-free, and dairy-free.…” | 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. |
| Benefit claim “Lazpowfi Hair Growth Products, Biotin 10000mcg, 30-in-1 with Vitamin A, B3, C, D, E, Calcium, Hair Growth Supplement, Supports Hair & Nails Natural Growth Vitamins, for W” | 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 (Zinc Glycinate) | shaded = doses used in studies (8 mg–40 mg) · bar = this label | 20 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-b1ab622a (internal — no barcode published, which limits cross-checking) |
| Brand | Lazpowfi |
| Source listing identifier | B0DR7NMGFS |
| Retailer listing title | Lazpowfi Hair Growth Products, Biotin 10000mcg, 30-in-1 with Vitamin A… show full titleLazpowfi Hair Growth Products, Biotin 10000mcg, 30-in-1 with Vitamin A, B3, C, D, E, Calcium, Hair Growth Supplement, Supports Hair & Nails Natural Growth Vitamins, for Women & Men - 30 Servings |
| USPTO brand owner | Wang Chenglong · INDIVIDUAL · China |
| Owner filed address | Sungang Township, Yeji District, Qianwan Group, Tangwan Village, Liu'an, Anhui, 237000, CHINA |
From the label (photo-read)
| Serving size | 4 Capsules |
| Servings per container | 30 |
| Pack statement | 120 Capsules |
| Badges printed on pack | GMP certified, third party tested |
Supplement Facts panel (photo-read):
| Ingredient | Amount per serving | Reading confidence |
|---|---|---|
| Vitamin B7 (Biotin) | 10000mcg | High clearly legible in the photo |
| Vitamin D (Cholecalciferol) | 50mcg | High clearly legible in the photo |
| Vitamin C (Ascorbic Acid) | 100mg | High clearly legible in the photo |
| Vitamin A (Beta-Carotene) | 1500mcgRAE | High clearly legible in the photo |
| Vitamin E (D-alpha Tocopherol) | 10mg | High clearly legible in the photo |
| Vitamin B3 (Niacinamide) | 10mg | High clearly legible in the photo |
| Calcium (Calcium Carbonate) | 40mg | High clearly legible in the photo |
| Potassium (Potassium Chloride) | 50mg | High clearly legible in the photo |
| Zinc (Zinc Glycinate) | 20mg | High clearly legible in the photo |
| Selenium (L-selenomethionine) | 200mcg | High clearly legible in the photo |
| Iodine (Organic Kelp) | 225mcg | High clearly legible in the photo |
| Proprietary Blend | 2000mg | High clearly legible in the photo |
| Glycine | 20mg | High clearly legible in the photo |
| L-Lysine | 20mg | High clearly legible in the photo |
| L-Proline | 20mg | High clearly legible in the photo |
| L-Hydroxyproline | 20mg | High clearly legible in the photo |
| Hyaluronic acid | 20mg | High clearly legible in the photo |
Claims printed on the packaging:
“Healthy Hair” · “Growing Nails” · “Smooth Skin” · “Dietary Supplement” · “Biotin 10,000 mcg” · “Multivitamin Combination” · “30-IN-1” · “Multiple hair growth ingredients”
Read by a vision model from 6 listing photos — verbatim extraction; OCR errors possible. Spot a mistake? It will be corrected on review.
Where it sells
We found a brand storefront, but we could not match any price on it to this exact product when we checked.
Official brand domain: www.lazpowfi.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
Biotin — NIH ODS · MedlinePlus · PubMed (1,606) · no UL; high doses interfere with lab tests
Vitamin D — NIH ODS · MedlinePlus · PubMed (26,500) · UL 100 mcg (adults; 100 mcg = 4,000 IU)
Vitamin C — NIH ODS · MedlinePlus · PubMed (11,019) · UL 2000 mg (total intake, adults)
Vitamin A — NIH ODS · MedlinePlus · PubMed (10,699) · UL 3000 mcg (preformed vitamin A (retinol); excludes beta-carotene)
Vitamin E — NIH ODS · MedlinePlus · PubMed (12,326) · UL 1000 mg (supplemental alpha-tocopherol, adults)
Niacin — NIH ODS · MedlinePlus · PubMed (2,689) · UL 35 mg (supplemental/added niacin, adults)
Calcium — NIH ODS · MedlinePlus · PubMed (48,938) · UL 2500 mg (adults 19-50 (2,000 mg for 51+))
Potassium — NIH ODS · MedlinePlus · PubMed (16,128) · no UL; supplements capped at 99 mg OTC
Zinc — NIH ODS · MedlinePlus · PubMed (19,708) · UL 40 mg (adults, from all sources)
Selenium — NIH ODS · MedlinePlus · PubMed (12,481) · UL 400 mcg (adults)
Iodine — NIH ODS · MedlinePlus · PubMed (6,462) · UL 1100 mcg (adults)
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-b1ab622a · built September 03, 2026 · lookcloser.ai · corrections@lookcloser.ai