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A dated ranking by lab reports and search demand, with who ordered the tests and what customer-sent vials showed.
TitrateLab has 718 lab test records for Simple Peptide, tested from to , covering 110 product names (2 without a test date). Median measured purity is 99.8% across 663 purity tests; 2 were below 90%. 1 test did not detect the expected compound. In the last 6 months, 144 fill tests compared the measured amount with the label: 1 was more than 15% under and 59 were more than 15% over. None of the 72 classified endotoxin tests failed. 1 result reported a zero amount. Lab results describe the batches that were tested, not every product or order.
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2 without a valid past test date72 classified tests · All time
664 reported purity outcomes · All time
144 fill tests · Last 6 months
144 fill tests · Last 6 months
529 numeric amount results · All time
718 test records on file · January 2025 to October 2026
TitrateLab Pro
Read measured purity and contents, open available originals, and explore recorded prices, buyer reviews and alerts for Simple Peptide.
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Or buy just this vendor: the Simple Peptide report for $5, 30 days of access to every Simple Peptide record on TitrateLab, no subscription.
Measured against the printed amount. Finnrick quantities are excluded.
Mean 99.5% · Median 99.8%. The 90% grouping is not a safety threshold.
54 records have no usable purity outcome. 246 do not have a comparable fill test. 646 lack a classified endotoxin result. A classified pass does not mean no endotoxin was detected.
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Buyer experiences—not lab results or verified purchases.
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Published investigations, with the sources and context behind the findings.
Answers based on the published evidence—not a vendor endorsement.
TitrateLab has 718 lab test records for Simple Peptide, tested from January 1, 2025 to October 23, 2026, covering 110 product names (2 without a test date). Median measured purity is 99.8% across 663 purity tests; 2 were below 90%. 1 test did not detect the expected compound. In the last 6 months, 144 fill tests compared the measured amount with the label: 1 was more than 15% under and 59 were more than 15% over. None of the 72 classified endotoxin tests failed. 1 result reported a zero amount. Lab results describe the batches that were tested, not every product or order.
How to check if a peptide vendor is legit: six checks, and what they cannot prove.
99.5% mean measured purity across 663 positive purity tests; 2 below 90%. The 90% grouping is not a safety threshold. 1 additional test did not detect the expected compound.
TitrateLab has 718 lab test records for Simple Peptide. Tested from 2025-01-01 to 2026-10-23. A test record is not necessarily a unique certificate.
Last 6 months: 84 of 144 fill tests within ±15% of label, 1 more than 15% under and 59 more than 15% over. All time: 302 of 472 fill tests within ±15% of label, 6 more than 15% under and 164 more than 15% over. The measured amount is compared with the printed label. Finnrick quantity comparisons are excluded because they use a vendor batch claim. Missing tests are not passes.
Of 72 classified endotoxin tests, 0 failed, 0 were borderline and 72 passed. A pass does not mean no endotoxin was detected.
Names on reports; vendor role unverified. A test record is not necessarily a unique certificate.
The reports describe the batches that were tested, not an untested vial or an offer from this vendor.
718 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 2026-05-01 through 2026-11-01, inclusive. The summary, charts and FAQ use these same definitions. 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 72 records have a classifiable result. Community sentiment describes reviews, not laboratory measurements or independently verified purchases. Results are not certification, medical advice or endorsement.
TitrateLab Pro
Pro opens the available original certificates with their batch, lab and measured-amount details, plus every report on file for Simple Peptide.
Membership unlocks access, not additional testing, and is not vendor certification.
Or buy just this vendor: the Simple Peptide report for $5, 30 days of access to every Simple Peptide record on TitrateLab, no subscription.