5-HTP · 100 mg per serving
Evidence →The same-name panel row declares 100 mg per serving, matching the 100 mg listing claim.
Exact product checked · barcode not publishedNatrol · observed 2026-07-22
Quick read · Natrol
Natrol 5-HTP 100 mg Time Release
Marketing check: 1 checks out.
Rebuilt from public sources on July 23, 2026 · evidence availability is not a safety or effectiveness verdict.
45tablets
45servings per container
Marketing claims, checked
Does the marketing hold up?
Couldn’t verify means public proof was not found; it is not a mark against the product. Ingredient research is not treated as a trial of this exact product.
✓Checks out1
Quick read · 2 useful findings
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
Needs explanationAny trouble on the record?
FDA recall appears in this brand's history
An exact-product recall is a direct signal. A different product from the same firm is company context, not a strike against this item.
Evidence and sources
Brand-level context only, not a finding about this product. Natrol, LLC recalled a different or not-exactly-bound product on 2021-04-08: “One lot of ALA 300 mg Cap-50 were labeled at Melatonin 3 mg Tab-60.” (status: Terminated). The recalled product was: “Natrol Melatonin 3 mg, T…
Locked evidence record →Open the full source-linked findingChecks outIs the label honest?
Listing claim matches the Supplement Facts panel
What is advertised is what the label declares. This checks internal consistency; it is not an independent test of the contents.
Evidence and sources
The listing claims 100 mg; the photo-read Supplement Facts panel shows 5-HTP (5-Hydroxytryptophan) at 100 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 findingBuying options
Where you can check or buy it
Open related seller leads before buying, then confirm the flavor, count, and serving size. Their prices are visible, but LookCloser does not claim savings until the pages share a UPC/GTIN.
Amazon
Submitted listingNo price confirmed
Exact page checked on 2026-07-22; current price was not retained.
View on Amazon ↗Brand website
Related product page · UPC absent$19.29
Useful as a related-size lead, not as an exact price comparison.
Time Release 5-HTP 100mg Tablets · Default Title. It repeats 100 mg, but the exact sellable unit is not established.
Check brand website ↗Walmart
Not confirmedNo price confirmed
No matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.
Search Walmart ↗iHerb
Not confirmedNo price confirmed
No matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.
Search iHerb ↗Prices and stock are point-in-time observations. Related pages are never used as product evidence. No affiliate links; LookCloser earns nothing from these sellers.
Want the complete evidence trail?
The summary stops at product-specific facts. The full report preserves every source, calculation, limitation, and unresolved check for review or sharing.
Open the full evidence trailSources, edge cases, and every unresolved check
Confirmed evidence
What checked out00
These checks found support in the public record. They confirm specific facts, not the product as a whole.
Nothing could be independently confirmed from the available record.
Documented concerns
What needs caution00
These are documented contradictions or claims that need more evidence. They are separate from missing data.
No contradictions or product-specific cautions were found at this check depth.
Unresolved public record
What is still missing04
We looked for these signals but could not settle them from public sources. A gap is not a strike.
Listing claim matches the label panel
The listing claims 100 mg; the photo-read Supplement Facts panel shows 5-HTP (5-Hydroxytryptophan) at 100 mg per serving — the listing text and its photo-read panel agree; this is internal consistency, not independent testing.
FDA recall appears in this brand's history
Brand-level context only, not a finding about this product. Natrol, LLC recalled a different or not-exactly-bound product on 2021-04-08: “One lot of ALA 300 mg Cap-50 were labeled at Melatonin 3 mg Tab-60.” (status: Terminated). The recalled product was: “Natrol Melatonin 3 mg, Tab 60 White bottle with purple flip-top cap. Fall asleep faster, Stay asleep longer, 100$ Drug Free 1 Tablet 20 minutes before bedtime. Manufactured by N” — not necessarily the product on this page. Verify at FDA’s recall database.
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 361 on 2026-01-26 to 367 on 2026-07-15 (net +6). 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
Answered by the panel: 0.1 g of the 0.1 g headline is 5-htp. Which independent lab can confirm that amount in this product?
The panel resolves the front-label arithmetic. The remaining question is lot-specific contents and stability; published category testing gives context, not a test of this product.
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.
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.
Record built July 23, 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.