PT-141: 1,400 published COA source records

48 studies on PT-141 curated from PubMed, ClinicalTrials.gov, and EuropePMC. Updated daily.

Bottom line: TitrateLab indexes 1,400 published PT-141 COA source records from third-party laboratories, covering 535 publicly attributable vendor identities. Across 1,246 records with positive numeric purity, the arithmetic mean is 99.73%. 4 records report zero purity; these remain in the record count and are excluded from the positive-purity mean. 2 positive purity results are below 90%; 100 records report measured amount more than 10% below the label. The latest recorded test date is 2026-10-15. TitrateLab did not perform these laboratory tests. Source records are not unique batches, and vendor identity does not establish manufacturing role, product safety or overall quality.

PT-141 average prices

As of 2026-10-18, vendor-blind retail asking-price averages for the US delivery market, calculated from the same in-stock exact-strength cells as the Peptide Price Index. Shipping is excluded.

Strength Average / vial Observed range / vial Average / mg Coverage
10 mg $9.17 $8.00–$10.50 $0.92 3 sources · 3 offers

Asking prices are not manufacturing cost and do not establish product equivalence, quality, safety, or legality. View full price methodology →

PT-141: published third-party laboratory evidence

All published source records, including absent and zero purity. Matching uses a case-insensitive exact peptide token. No deduplication in the headline; vendor rankings deduplicate eligible certificates separately. The COA archive can use normalized compound names and a different measurement or duplicate policy; totals from these populations need not match.

Latest recorded test: 2026-10-15. Aggregate calculated: 2026-10-18T04:26:50.623413+00:00. Calculation time is not a laboratory observation date.

Within that total, 378 source records have unresolved vendor identity. They remain in corpus-level lab evidence and are excluded from named-vendor rankings.

99.73%
Mean positive purity
4
Records reporting zero purity
1400
Published source records
535
Public vendor identities
2
Positive results below 90%
100
Amount below label >10%

Top 3 vendor evidence profiles for PT-141

Eligible vendors have at least 2 deduplicated certificates and 2 classifiable identity observations. Rank uses the 95% lower confidence bound on clean identity results; mean positive purity and certificate count break ties. Missing measurements are not passes. Exact-zero/not-detected and explicit wrong-compound markers count once per adverse certificate. This describes submitted-sample evidence, not every product or shipment, and is not an endorsement.

RankVendorDeduplicated certificatesAvg positive purityIdentity adverse results
#1 23 99.82% 0 of 21 (0.0%) 0 0% / not detected · 0 wrong compound · 2 unclassified Reveal with Pro →
#2 21 99.87% 0 of 19 (0.0%) 0 0% / not detected · 0 wrong compound · 2 unclassified Reveal with Pro →
#3 15 99.72% 0 of 13 (0.0%) 0 0% / not detected · 0 wrong compound · 2 unclassified Reveal with Pro →

Vendor identities are included with Pro. Record counts and lab measurements remain visible.

Recent source records: #120331 (99.97%) · #120438 (99.74%) · #120218 (99.92%) · #120169 (99.5%) · #119504 (99.6%) · #119530 (99.91%)

PT-141 studies and clinical research

Research tools

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Reconstitution calculator Bac water, concentration & insulin-unit math Verify a COA Look up a report number against our corpus