Independent lab evidence
Longevity WS
Longevity WS’s lab evidence dates to June 2026 and covers 30 test records across 11 recorded compound names, alongside 0 community reviews. Median purity is 99.9% across 23 positive purity tests. The latest report is from September 2026.
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Reports by test date
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30 published records · 0 excluded by the current index · Attribution follows the maintained profile; no vendor verification is implied. A test record is not necessarily a unique certificate.
Key facts
All time unless datedEndotoxin failures
No classified endotoxin test on file
Not testedExpected compound not detected
23 reported purity outcomes
None recordedUnderfilled >15%
22 fill tests · Last 6 months
Overfilled >15%
22 fill tests · Last 6 months
Reported zero amount
22 numeric amount results
None recordedLab reports
30 test records on file · June 2026 to September 2026
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Test results
How the fills compare
22 fill tests · All timeMeasured against the printed amount. Finnrick quantities are excluded.
Beyond the purity average
23 positive testsMean 99.6% · Median 99.9%. The 90% grouping is not a safety threshold.
Test coverage & missing results
7 records have no usable purity outcome. 8 do not have a comparable fill test. 30 lack a classified endotoxin result. A classified pass does not mean no endotoxin was detected.
Reports behind these results
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Community reviews
Buyer experiences—not lab results or verified purchases.
No approved reviews on file yet.
Prices & value
Market price index →Recorded offers—not a live stock guarantee. Package quantity, delivery market and price basis stay attached.
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Questions about Longevity WS
Answers based on the published evidence—not a vendor endorsement.
Is Longevity WS legit?
TitrateLab does not rank or recommend vendors; it reports what independent labs measured. Longevity WS shows high measured purity (99.6% mean across 23 positive purity measurements). Dose accuracy is mixed and recent underfills are uncommon: in the last 12 months 10 of 22 dose results were on target, 1 under label and 11 over; all time 10 of 22 on target, 1 under and 11 over. These results describe tested batches, not every product or shipment.
What is Longevity WS's average purity?
99.6% mean measured purity across 23 positive third-party lab results; 23 were at or above 90% and 0 were below.
How many Longevity WS lab certificates has TitrateLab tracked?
30 third-party certificates from 2026-06-22 to 2026-09-10, covering 10 compounds.
How accurate are Longevity WS's doses?
Dose accuracy is mixed and recent underfills are uncommon: in the last 12 months 10 of 22 dose results were on target, 1 under label and 11 over; all time 10 of 22 on target, 1 under and 11 over. A dose result compares the measured amount with the amount printed on the label: under is more than 10% below, over is more than 10% above, on target is everything in between. Finnrick results are excluded because that lab measures against the vendor's batch claim. Missing values are never counted as passes.
Has Longevity WS failed an endotoxin test?
No classifiable endotoxin result is on file for any of the 30 counted records.
Sources, definitions & limits
30 published records are attributed to this vendor. The current certificate index excludes 0 repeated records using file hashes and supported lab verification links. Missing identity keys can leave repeated certificates. Recorded name groups can include variants, mixtures and unclassified names.
Evidence dates describe the tested samples, not when the vendor was founded, current stock, or a performance trend. Purity uses positive measurements only. Exact-zero purity is a not-detected identity outcome, not proof of an empty vial. A zero measured amount requires an explicit numeric amount result; missing amounts are not zero.
Underfills and overfills here exceed 15% in either direction against the printed amount. Vendor batch claims are not used; Finnrick quantity comparisons are excluded. Recent outcomes cover 2026-04-02 through 2026-10-02, inclusive. The older published ±10% partition may appear in the existing FAQ and is a different, explicitly labelled threshold. Missing tests are not passing results.
Endotoxin failures, borderline outcomes and passes use the recorded lab verdict. A pass is not proof of no endotoxin. Only 0 records have a classifiable result. Community sentiment describes reviews, not laboratory measurements or independently verified purchases. Results are not certification, medical advice or endorsement.
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